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Weather Station Hardware => What Weather Station Should I Buy? => Topic started by: ivano on July 10, 2020, 09:50:10 AM

Title: Comparison of solar schemes and weather stations
Post by: ivano on July 10, 2020, 09:50:10 AM
salve. ho aperto questo post per pubblicare i vari confronti trai vari sistemi meteo che sto facendo , prima di tutto vi mostro la postazione dove si trovano i vari sistemi  [ You are not allowed to view attachments ]  i sensori usati sono ecowitt ,ci sono i sensori standard (quelli a scatoletta) ed i nuovi sensori con sonda sht35  [ You are not allowed to view attachments ]  gli schermi sono il meteoshield pro , il lastem il davis e la ws80 i sensori sonda sono nel pro e nel lastem, nel davis c'è un wh31 modificato per metterlo in verticale, nella ws80 cìè il sensore originale
1)confronto met pro-lastem-ws80  [ You are not allowed to view attachments ]   [ You are not allowed to view attachments ]
2)confronto davis-lastem  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
3)confronto davis-ws80  [ You are not allowed to view attachments ]   [ You are not allowed to view attachments ]
questi sono i dati del 09-07-2020 , se qualcuno altro fa i confronti può pubblicarli qui , se vorrà ,  [tup]
 
Title: Re: i miei confronti ecowitt e non.....
Post by: droiddk on July 10, 2020, 11:52:00 AM
Thanks for the images..... :shock:
Title: Re: i miei confronti ecowitt e non.....
Post by: Otis on July 10, 2020, 02:23:04 PM
Looks cool, wish I understood the language  :-)
Title: Re: i miei confronti ecowitt e non.....
Post by: KC5JIM on July 10, 2020, 02:51:26 PM
"Hello. I opened this post to publish the various comparisons between various weather systems that I am doing, first of all I show you the location where the various systems are located"
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 10, 2020, 03:04:52 PM
hahaha do you want to tell me i have to write in english? ok you have to settle for the translator though.
Title: Re: i miei confronti ecowitt e non.....
Post by: KC5JIM on July 10, 2020, 03:08:44 PM
hahaha do you want to tell me i have to write in english? ok you have to settle for the translator though.

I don't care what language you post in. If the post looks interesting I'll translate it myself.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 10, 2020, 03:13:14 PM
Vedendo le prime due risposte , sembra che prediligono l'inglese  #-o addirittura non hanno capito la lingua , comunque non c'è problema andrò di translate ,
Title: Re: i miei confronti ecowitt e non.....
Post by: KC5JIM on July 10, 2020, 03:17:08 PM
Vedendo le prime due risposte , sembra che prediligono l'inglese  #-o addirittura non hanno capito la lingua , comunque non c'è problema andrò di translate ,

Dovresti pubblicare in qualsiasi lingua sia la più semplice per te, in particolare quando pubblichi informazioni tecniche. Non preoccuparti delle persone che pensano che l'inglese sia l'unica lingua al mondo.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 10, 2020, 03:47:13 PM
comunque ripensandoci bene , scrivo in italiano , io leggo i vostri post traducendo la pagina , potete fare anche voi lo stesso  [tup]
dati di oggi ... confronto tra meteoschield pro lastem e ws80 ,  guardate intorno alle 16 che crollo di temperatura , senza che ci siano nuvole o aumento del vento  #-o
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Title: Re: i miei confronti ecowitt e non.....
Post by: galfert on July 10, 2020, 03:59:35 PM
That Meteoshield Pro seems really nice as it shows to make a huge difference. I never realized before as typical images just show the spiral from the side, but I can now see from the under part that it is actually a triple helix....I thought before that it was just a double helix. Very interesting design.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 10, 2020, 04:04:48 PM
e si, il meteoshiel pro è davvero un gran bel schermo , secondo me il migliore per quanto riguarda i passivi , il lastem è uno schermo professionale , ma non è all'altezza del pro, hanno trovato la formula giusta con questa forma elicoidale e l'interno di color nero
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 11, 2020, 02:27:37 AM
dati di ieri 10-10-2020 (davis-lastem) (http://[attachment id=1 msg=410007][/attachment][attachment id=2 msg=410007][/attachment]) (davis-ws80) (http://[attachment id=3 msg=410007][/attachment][attachment id=4 msg=410007][/attachment])
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 12, 2020, 03:11:45 AM
dati di ieri 11-07-2020 (http://[attachment id=1 msg=410042][/attachment][attachment id=2 msg=410042][/attachment]) davis-lastem  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  davis-ws80 (http://[attachment id=5 msg=410042][/attachment][attachment id=6 msg=410042][/attachment]) giornata davvero tosta ieri , soprattutto nella prima parte di giornata fino alle 10 di mattina quando il vento era molto debole , e le differenze si vedono subito , poi il vento è aumentato e tutto è tornato nella normalità si può notare anche come il lastem e la ws80 appena esce il sole subito schizzano in alto, cosa che il davis non fa . ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 13, 2020, 10:19:13 AM
dati del 12-07-2020
confronto meteoshield pro-lastem-ws80  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  

davis-lastem  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]

davis ws80  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]   [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 14, 2020, 04:11:52 PM
giornata caratterizzata da forte vento di maestrale  ](*,) questi i dati di oggi
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Title: Re: i miei confronti ecowitt e non.....
Post by: sdi89 on July 15, 2020, 04:44:11 AM
Ciao Ivano,

ho avuto una Davis Vantago Pro per 15 anni. Putroppo ora l'ho dovuto gettarla.
Ho provato 2 modelli ecowitt. Le temperature misurate sono davvero "fuori" di 5 gradi anche.

Cosa mi consigli di comprare? Per rilevare temperature +/- di un 1 grado di tolleranza?
Vorrei usare weewx e non spendere più di 500 €.

il shield passivo della Davis col sensore temp della ecowitt mi sembra non da dei risultati accettabili, vero?
+4 gradi anche fuori?

Purtroppo non ho corrente fuori nel giardino, quindi non posso montare qualcosa con shield attivo.


Sono in Austria (-20 d'inverno / 30 d'estate).

Grazie.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 15, 2020, 10:49:13 AM
Ciao Ivano,

ho avuto una Davis Vantago Pro per 15 anni. Putroppo ora l'ho dovuto gettarla.
Ho provato 2 modelli ecowitt. Le temperature misurate sono davvero "fuori" di 5 gradi anche.

Cosa mi consigli di comprare? Per rilevare temperature +/- di un 1 grado di tolleranza?
Vorrei usare weewx e non spendere più di 500 €.

il shield passivo della Davis col sensore temp della ecowitt mi sembra non da dei risultati accettabili, vero?
+4 gradi anche fuori?

Purtroppo non ho corrente fuori nel giardino, quindi non posso montare qualcosa con shield attivo.


Sono in Austria (-20 d'inverno / 30 d'estate).

Grazie.
ciao , il mio consiglio è 1) meteoshield pro ( schermo solare) della barani 2) termoigometro wh32 sht35 con sonda della ecowitt 3) gw1000 (gateway ecovitt) 4)wh40 pluviometro della ecowitt (molto preciso) ed infine il wh68 anemometro che rileva radiazione solare e raggi UV e con questo allestimento sei apposto e dentro le tue 500 euro , ci sarebbe da aggiungere la consolle ( se ne hai bisogno ) dico cosi' perchè essendo tutto wifi puoi vedere in qualsiasi momento i tuoi dati sia dal cell tramite l'app wsview che dal pc  sul sito ecowitt.net  , ma anche dal cell .... se vuoi risparmiare qualcosa (50 euro), puoi decidere di prendere lo schermo solare lastem che si discosta dal meteoshield pro mediamente di 0,4/0,5 decimi nelle 24 h .
per quanto riguarda il davis 7714 risparmi 100 euro ma siamo a differenze superiori ad 1 grado mediamente , nelle giornate di scarsa ventilazione e buona radiazione solare  ](*,) l'importante è avere il wifi in casa  :???:
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 15, 2020, 10:56:04 AM
dati di ieri 14-07-2020 confronto davis-lastem  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  
Title: Re: i miei confronti ecowitt e non.....
Post by: krojan on July 15, 2020, 11:29:27 AM
It seems to me that one sensor is in the shadow of another sensor.

Mi sembra che un sensore sia all'ombra di un altro sensore.

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Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 15, 2020, 11:50:24 AM
It seems to me that one sensor is in the shadow of another sensor.

Mi sembra che un sensore sia all'ombra di un altro sensore.

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be , sono esposti a sud/ovest , la miglior posizione per fare in modo che vengano colpiti tutto il giorno in modo omogeneo dal sole , i due schermi non si ombreggiano mai , al massimo può essere il palo che per alcuni minuti possa ombreggiare il pro , il lastem è impossibile il sole sta di dietro a quell'ora  :?
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 16, 2020, 09:22:01 AM
dati di ieri 15-07-2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  quando il vento è basso e c'è forte radiazione solare , sono dolori per gli schermi , ed il distacco dal meteoshield pro aumenta  :? poi riparte il vento e tutto torna nella normalità :lol:
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 18, 2020, 02:35:05 PM
dati di oggi 18-07-2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  apportata una modifica in postazione  [ You are not allowed to view attachments ]  tappeto erboso sintetico meglio il verde sotto i sensori che il grigio scuro  :-)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 19, 2020, 03:59:09 PM
dati di oggi 19-07-2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 21, 2020, 04:02:28 AM
confronti del 20/07/2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
confronto davis7714-lastem  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
confronto davis7714-ws80  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
giornata ventosa , è utile vedere anche in queste situazioni meteo come si comportano i vari schermi [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 23, 2020, 05:48:36 AM
dati del 22-07-2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  8-)
Title: Re: i miei confronti ecowitt e non.....
Post by: kenthcwx on July 23, 2020, 06:42:30 AM
The consistent performance of the Meteoshield Pro really does go to show that it's worth getting.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 23, 2020, 06:45:55 AM
The consistent performance of the Meteoshield Pro really does go to show that it's worth getting.
E si ,in questo momento il meteoshield pro è probabilmente il miglior schermo passivo in circolazione, le sue prestazioni in qualsiasi condizione meteo o luogo dove si mette sono sempre al top  :-)
Title: Re: i miei confronti ecowitt e non.....
Post by: kenthcwx on July 23, 2020, 06:54:44 AM
The consistent performance of the Meteoshield Pro really does go to show that it's worth getting.
E si ,in questo momento il meteoshield pro è probabilmente il miglior schermo passivo in circolazione, le sue prestazioni in qualsiasi condizione meteo o luogo dove si mette sono sempre al top  :-)

The thing that does impress me is the fact you put it literally anywhere and it gets accurate temps & beats the Stevenson screen in temperature accuracy. Amazing piece of work honestly.
Title: Re: i miei confronti ecowitt e non.....
Post by: galfert on July 23, 2020, 08:33:16 AM
I think the magic is in the spiral design. Hot air rises, therefore there is always a natural convection that occurs with the spiral design. The spiral design is what allows air to move. Every other radiation shield you see is just a sandwich of layered sections that trap the air. Other weather station manufacturers should take note.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 23, 2020, 08:41:37 AM
Esatto , il suo punto di forza è la sua forma elicoidale, questa forma in sostanza lo rende come un ventilato, il vento si incanala e viene spinto dentro , ma l'altra cosa importante e l'interno formato da una specie di schermo di colore nero, che assorbe  la radiazione riflessa , insomma davvero ben fatto e studiato in modo eccellente  :-)
Title: Re: i miei confronti ecowitt e non.....
Post by: galfert on July 23, 2020, 08:49:29 AM
Someone should paint the inside of their Davis 7714 or Ambient SRS100LX with black paint and test. Of course they would need a control, with another one that was not painted.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 23, 2020, 09:21:40 AM
Someone should paint the inside of their Davis 7714 or Ambient SRS100LX with black paint and test. Of course they would need a control, with another one that was not painted.
eheheheh io ho già fatto questa prova però non ho usato il davis , ma un mio auto costruito che batteva il davis , ma npn c'è stato nulla da fare , quando c'era vento tutto ok , andava quasi al pari con il pro, ma in assenza di vento e alta radiazione solare , il distacco aumentava in modo importante 0,6/0.7 decimi  di differenza , il nero sotto serve per la radiazione riflessa , ma per il vento il nero non ha nessuna efficacia,  ](*,) , comunque un confronto nel prossimo futuro sarà ;inserire un sensore sonda ecowitt dentro il davis7714 e fare la parte di sotto dei piatti neri , per vedere che succede  [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: galfert on July 23, 2020, 09:33:51 AM
Sounds good. I look forward to your tests. Thank you!
Title: Re: i miei confronti ecowitt e non.....
Post by: DoctorKnow on July 23, 2020, 09:55:32 AM
Interesting stuff, thanks Ivano!
Title: Re: i miei confronti ecowitt e non.....
Post by: Mandrake on July 23, 2020, 11:46:14 AM
Not surprisingly Ecowitt are working on a new radiation screen design and I hope that they will be looking closely at the Meteoshield design.
Probably be a while as they are very busy with new projects but at least its on the board!
Title: Re: i miei confronti ecowitt e non.....
Post by: galfert on July 23, 2020, 12:05:23 PM
Mandrake,
Did you send them the tip to make it spiral?

Ecowitt is just fascinating in how much they listen to their customers for product innovation and improvement.
Title: Re: i miei confronti ecowitt e non.....
Post by: sdi89 on July 23, 2020, 12:08:31 PM
Not surprisingly Ecowitt are working on a new radiation screen design and I hope that they will be looking closely at the Meteoshield design.

That's very interesting and would massively improve the quality of their external temp readings. I guess the radiation shield will also cost a bunch less than the high quality ones from the competitors.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 23, 2020, 02:22:54 PM
yes I also felt that there is something planned that will concern the shielding of the sensors, we hope because it is something that is missing from the ecowitt and extremely important [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: kenthcwx on July 23, 2020, 03:12:20 PM
Not surprisingly Ecowitt are working on a new radiation screen design and I hope that they will be looking closely at the Meteoshield design.
Probably be a while as they are very busy with new projects but at least its on the board!

Ecowitt suppling good radiation shields for their temperature sensors would help them surpass Davis & become one of the top dogs in the industry personally. They are one of the only companies in this field that listen to customer feedback & they are on the way to the top.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 23, 2020, 03:29:51 PM
dati di oggi 23-07-2020  [ You are not allowed to view attachments ]   [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  
 giornata molto calda con una massima di 33.7 , ma sempre con l'immancabile vento da nord , a quanto pare sarà una costante per una decina di giorni altri  comunque il lastem in queste condizioni mi piace come va con uno scostamento medio di 0.38 decimi non è male , ma sono soddisfatto anche della ws80 che fa la sua bella figura soffre un pò la mattina , ma poi si riprende bene  ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: kenthcwx on July 23, 2020, 04:18:55 PM
dati di oggi 23-07-2020  [ You are not allowed to view attachments ]   [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  
 giornata molto calda con una massima di 33.7 , ma sempre con l'immancabile vento da nord , a quanto pare sarà una costante per una decina di giorni altri  comunque il lastem in queste condizioni mi piace come va con uno scostamento medio di 0.38 decimi non è male , ma sono soddisfatto anche della ws80 che fa la sua bella figura soffre un pò la mattina , ma poi si riprende bene  ;)

I'd personally think that the WS80 would perform worse out of them all since it's mainly a wind sensor & I'd have temperature accuracy lowest of my priorities. Impressive none the less. Thank you for the tests!
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 23, 2020, 05:38:46 PM
dati di oggi 23-07-2020  [ You are not allowed to view attachments ]   [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  
 giornata molto calda con una massima di 33.7 , ma sempre con l'immancabile vento da nord , a quanto pare sarà una costante per una decina di giorni altri  comunque il lastem in queste condizioni mi piace come va con uno scostamento medio di 0.38 decimi non è male , ma sono soddisfatto anche della ws80 che fa la sua bella figura soffre un pò la mattina , ma poi si riprende bene  ;)

I'd personally think that the WS80 would perform worse out of them all since it's mainly a wind sensor & I'd have temperature accuracy lowest of my priorities. Impressive none the less. Thank you for the tests!
Sì è vero chi ha la WS80 la usa per l'ottimo anemometro
ad  ultrasuoni, però se invece di avere quel piccolo schermino per schermare il sensore , avesse uno schermo più performante , be sarebbe un'ottima stazione , non arriverebbe al meteoshield pro ma il davis 7714  lo batterebbe senza problemi , che poi guardando i grafici che ho pubblicato , già adesso va alla pari al Davis ,  ;) ha anche un gran vantaggio la WS 80 un'elevata reattività ,
Title: Re: i miei confronti ecowitt e non.....
Post by: Mandrake on July 24, 2020, 04:22:04 AM
Agreed on the WS80.
When I first received the pre-production model of the WS80 I really recognised that Ecowitt/Fine Offset are deadly serious at this game because it was such a step up from the standard sensor suite in terms of build and design.
In my mind there is no doubt that they aspire to surpass Davis in terms of quality and capability if you want it, whilst offering a relatively good base level to get started.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 24, 2020, 06:09:56 AM
confronti di ieri 23-07-2020 davis-lastem  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  
confronto davis-ws80                              [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
ottima radiazione solare e tanto caldo ottimo comportamento della ws80 - il lastem va molto meglio come è giusto che sia ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: kenthcwx on July 24, 2020, 08:52:00 AM
confronti di ieri 23-07-2020 davis-lastem  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  
confronto davis-ws80                              [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
ottima radiazione solare e tanto caldo ottimo comportamento della ws80 - il lastem va molto meglio come è giusto che sia ;)

WS80 doing very well again. Thank you for the comparisons!
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 25, 2020, 02:15:57 AM
confronti del 24-07-2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  giornata tosta , finalmente il vento è calato un pò, infatti si vede anche nello scostamento , qualche decimo in piu' c'è, ;)
confronto davis-lastem  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
confronto davis-ws80  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]   [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 26, 2020, 04:06:20 AM
confronti del 25-07-2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  giornata interessante ieri, vento dapprima debole poi è aumentato , nel pomeriggio un temporale ci ha sfiorato il sensore fulmini ha funzionato a dovere  ;)
confronto davis-lastem  [ You are not allowed to view attachments ]   [ You are not allowed to view attachments ]
confronto davis-ws80  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]   [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 27, 2020, 04:05:30 AM
confronti del 26-07-2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
confronto davis-lastem  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
confronto davis-ws80  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]

nel primo confronto ho aggiunto l'auto costruito che ho finito di preparare , vediamo come se la cava , secondo me bene  ;) [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 28, 2020, 05:07:22 PM
dati di oggi 28-07-2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  giornata tosta oggi habbiamo raggiunto i 33.8° ottima radiazione solare , e vento moderato da nord ,da notare l'ottimo comportamento dell'auto costruito , che in queste condizioni , va meglio del lastem, e della ws80,  [tup] purtroppo non del pro , altrimenti sarei ricco  :lol: :lol: :lol:
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 29, 2020, 04:15:32 AM
confronti del 28-07-2020 davis-Auto costruito-ws80  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
davis-lastem  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]   [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 30, 2020, 03:35:15 AM
confronti del 29-07-2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
confronto davis-ws80-A.costruito  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
confronto davis-lastem  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
giormata tosta con buona radiazione solare vento debole 7 km/h di media e tanto caldo massima di 34.7° ottimo il comportamento dell'auto costruito , ma anche gli altri schermi si sono difesi bene  ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on July 31, 2020, 03:50:25 AM
dati di ieri 30-07-2020
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confronto davis-lastem-ws80-A.costruito
 [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  giornata rovente ieri , raggiunta la massima annuale con 36.1° vento debole ed ottima radiazione solare , giornata quasi ideale per testare i vari schermi , ottimo il comportamento dell'auto costruito , lastem-ws80 -si sono difesi abbastanza bene  ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 03, 2020, 04:19:32 AM
confronti del 02-08-2020
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confronti davis-lastem-ws80-A.costruito  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
il vento ha messo un pò tutti d'accordo , ma le distanze tra gli schermi sono evidenti a prescindere  ;) [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 04, 2020, 04:46:25 AM
dati del 03-08-2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
confronto davis-ws80-lastem-A.costruito
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giornata di ieri caratterizzata dallo scirocco che ha soffiato bene , ottimo l'auto costruito , anche il lastem si è difeso bene , la ws80 ha sofferto un pò queste condizioni meteo  8-)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 06, 2020, 06:17:20 AM
dati del 05-08-2020 confronto davis-ws80-lastem
 [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  giornata interessante dopo 2 giorni afosi con UR a 97% è arrivata la tramontana  =D> che ha portato aria fresca ma tanta instabilità, il wh57 ha rilevato quasi 400 fulmini  [tup] il wh40 ha avuto il suo da fare segnando 15,8 mm di pioggia  [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: kenthcwx on August 06, 2020, 07:40:04 AM
dati del 05-08-2020 confronto davis-ws80-lastem
 [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  giornata interessante dopo 2 giorni afosi con UR a 97% è arrivata la tramontana  =D> che ha portato aria fresca ma tanta instabilità, il wh57 ha rilevato quasi 400 fulmini  [tup] il wh40 ha avuto il suo da fare segnando 15,8 mm di pioggia  [tup]

Haven't had any good storms here this year so far. Good to see the WS80 still holding up very well.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 06, 2020, 08:18:53 AM
dati del 05-08-2020 confronto davis-ws80-lastem
 [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  giornata interessante dopo 2 giorni afosi con UR a 97% è arrivata la tramontana  =D> che ha portato aria fresca ma tanta instabilità, il wh57 ha rilevato quasi 400 fulmini  [tup] il wh40 ha avuto il suo da fare segnando 15,8 mm di pioggia  [tup]

Haven't had any good storms here this year so far. Good to see the WS80 still holding up very well.
the WS80 is an excellent station, there is a project to improve it in temperature measurement, which consists in coloring the plates of the shield in the lower part of opaque black, from the first data, there is a good improvement, let's see if ecowitt undertakes this way
Title: Re: i miei confronti ecowitt e non.....
Post by: kenthcwx on August 06, 2020, 06:25:33 PM
Quote
the WS80 is an excellent station, there is a project to improve it in temperature measurement, which consists in coloring the plates of the shield in the lower part of opaque black, from the first data, there is a good improvement, let's see if ecowitt undertakes this way

They've been quick to change and modify things before due to feedback so I can see this happening!
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 07, 2020, 08:35:34 AM
dati di ieri 06-08-2020
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è stata una giornata movimentata , con temporali e pioggia , guardate che sbalzo di temp in pochi minuti con l'arrivo del temporale  6° in 1 minuto , in questi casi il lastem va sotto il pro e continua sotto per un pò , poi ritorna con il pro, va a capire il perché , ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 07, 2020, 08:39:59 AM
da ieri è attiva la nuova postazione meteo , è ancora in allestimento , ma diciamo che qualcosa su c'é  ;) la postazione è a terra a 2,05 metri  dal suolo , per il momento è formata da un meteoshield pro con wh32 EP e la ws68 , a breve metterò il davis 7714 con un wh31 EP all'interno  [ You are not allowed to view attachments ]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 11, 2020, 09:26:36 AM
dati del 10-08-2020
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 da notare la differenza che c'è tra la temperatura del met pro sul tetto e del met pro al suolo  ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 12, 2020, 05:53:37 AM
data of 08-11-2020  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
solar day with excellent solar radiation and weak north ventilation, in the morning a very high humidity rate of 99% as regards the temperatures between the two weather stations, it is noted that it is higher on the ground by almost 2 ° Celsius compared to location on the roof,  ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 14, 2020, 04:37:31 PM
dati di oggi 14-08-2020  sunny day, in the morning until 13:00 weak wind and the screens are in pain and you can see in the gaps, then the sirocco wind has increased and things have improved a little  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  in the graphs there are the values ​​of the new rotronic screen, very small in size does what it can
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Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 16, 2020, 03:07:38 AM
good morning, data of 08/15/2020, a day with good solar radiation, the moderate wind from the north helped the screens not to suffer too much, but in any case the difference between the meteoshield pro and the other screens is clear. note the difference in temperature between the meteoshield on the roof and the one positioned at 2.05 meters above the ground, even 2 degrees centigrade, the davis 7714 that I disassembled is missing, I am inserting a wh31 EP probe inside, which I will position next to the meteoshield pro in the position on the ground, ;)
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Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 17, 2020, 02:56:36 PM
data today 17-08-2020 (location on the roof)
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position on the ground a 2,05 meters
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and here there is a big surprise the davis with the wh31EP inside has a very good performance, used to seeing gaps with the pro of over 1 degree with the standard sensors, with the new whEP it goes great  =D>

Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 18, 2020, 06:35:48 PM
data as of 08/18/2020
roof station comparison
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soil station comparison
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still good davis ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 19, 2020, 03:20:10 PM
data of today roof station
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position on the ground
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very eventful day, sun, clouds, rain, lightning and wind, in short, nothing was missing ;) davis still very good,
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on August 26, 2020, 04:02:09 PM
after a bit of vacation, here we are again, data from 08/26/2020 roof position
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position on the ground
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solar day, note the difference in temperature and wind between the location on the roof and the location on the ground #-o
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on September 01, 2020, 03:31:48 PM
data as of 01/09/2020 roof station
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position on the ground
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 [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: TheLegendOfTim on September 02, 2020, 04:32:45 AM
Hi Ivano

I have tried to look on all these great charts you are making - and thank you for that!  =D>
But I have a little hard time reading them, maybe because I'm a beginner in all this weather thingy here  :roll:

Can you, maybe just with a few words, tell what they say?
What are the most accurate?
What setup do you prefer?

Just translate it to words, for someone like me.

Thank you
Title: Re: i miei confronti ecowitt e non.....
Post by: galfert on September 02, 2020, 06:07:15 AM
On the most basic level to understand the temperature graphs what you see is the temperature curves of each sensor type inside of a given radiation shield. You can read the legend to match color with each sensor/radiation shield pairings. What you'll notice is that the Barani Meteoshield outperforms the other radiation shields by producing a slightly lower temperature curve graph line. The indication is that the other sensor/radiation shields run hot and do not provide sufficient protection from thermal radiation warming caused by the parts of the shield and the sensor case retaining thermal mass energy.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on September 02, 2020, 04:17:07 PM
Hi Ivano

I have tried to look on all these great charts you are making - and thank you for that!  =D>
But I have a little hard time reading them, maybe because I'm a beginner in all this weather thingy here  :roll:

Can you, maybe just with a few words, tell what they say?
What are the most accurate?
What setup do you prefer?

Just translate it to words, for someone like me.

Thank you
exactly as galfert explained, which is the best system? they are the same, however as regards temperature, humidity and rain, the position on the ground is more suitable, as regards the wind, the position on the roof is better, the graphs are easy to understand, just read the legend that is in each graph and it's done,
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on September 03, 2020, 04:10:59 PM
data today 03/09/2020 position on the roof
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position on the ground
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day with many clouds not ideal for making comparisons, but these are the data anyway [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on September 06, 2020, 03:13:20 AM
data of yesterday 05-09-2020 location on the roof
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position on the ground
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Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on September 10, 2020, 02:52:45 AM
some data from yesterday, location on the roof
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position on the ground
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Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on September 13, 2020, 01:59:29 PM
data today 09-13-2020 location on the roof
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position on the ground
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fire day with highs of 32.3 on the roof and 34.0 on the ground and humidity skyrocketing especially at night and up to mid-morning 98%, moderate ventilation from N / NW, in the position on the ground the wind was very weak at times absent, important gaps in the position on the roof, on the ground a little less but more than average. [tup] [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on September 16, 2020, 03:02:37 PM
changes in the stations, the davis 7714 was mounted on the roof station and the nesa mounted on the ground station
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and here are today's results, location on the roof
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position on the ground
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I forgot a storm that touched us, but my wh57 did its job well by detecting lightning strikes
that's all, for any questions or information ask without problems  [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on September 24, 2020, 05:47:31 AM
good morning, sorry for the absence, I changed the position on the ground, I put it on the roof next to the other,  [ You are not allowed to view attachments ]  these are yesterday's data  23-09-2020
roof position 1
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roof position 2
 [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  very interesting day yesterday with strong thunderstorms and strong winds with peaks of 50 km / h, finally the first rain after months of drought, to note the drop in temperature when the storm arrives, and the different response of the screens,  [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on September 27, 2020, 02:29:06 PM
data today 27/09/2020 roof station
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Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on September 29, 2020, 01:12:26 PM
data of 29/09/2020 location on the roof
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day with good solar radiation, moderate N / W wind some clouds, nothing relevant all normal in the graphs, obviously you can see the two meteoshield pros going on their own, but the other screens defend themselves quite well  ;)  [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on October 01, 2020, 12:59:07 PM
data today 01/10/2020 roof stations
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all in the norm ;) [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on October 05, 2020, 03:28:59 AM
data as of 04/10/2020 
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day with many clouds, and a lot of humidity up to 99%, it seems to have returned in summer, these data, the two meteoshield pro go their own way, while the other systems defend themselves as best they can.  :mad: [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on October 07, 2020, 03:17:48 AM
data of 06/10/2020
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very interesting day yesterday, with various thunderstorm passages that left some rain on the ground, note the behavior of the screens with the arrival of thunderstorms, each screen reacts in its own way, also in this case the meteoshield pro is more reactive in returning to normal quickly, others take a little while  ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on October 12, 2020, 02:17:06 AM
data of 11/10/2020
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meteoshield pros go on their own, while others defend themselves quite well ;) [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on October 18, 2020, 06:03:17 AM
comparison of 17/10/2020
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solar day with good solar radiation, weak wind, these are the results, you can see that the two meteoshield pro go on their own, while the other screens defend themselves;) in the next week I will add 2 new screens that seem to have excellent performance, but for the moment I will not reveal anything  ;) [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on October 23, 2020, 01:01:58 PM
data as of 23/10/2020
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still good days to compare the screens, we hope that there are more, next week, there will be 3 new screens to be evaluated on my station, screens that seem to be very performing, but we will see  ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on November 07, 2020, 03:29:14 AM
hi, I'm back after some time, I changed my stations, renovating and adding new screens, I added two metspec screens a RAD-02 and a RAD-14 in station 2 and they are in comparison with the meteoshield pro, inside as sensors, they are all WH31 / 32 EP by ecowitt, in the first station I added a ventilated davis h24 now they are like this:
station 1  [ You are not allowed to view attachments ]
station 2  [ You are not allowed to view attachments ]
these are the first data relating to 06/11/2020 station 1
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station 2  [ You are not allowed to view attachments ]
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 as you can see in the graphs of station 1, there is a problem with the ventilated davis h24, the fan turns slowly, I think it is the solar panel that is very damaged, I plan to solve it in the next few days, for those wishing to follow these comparisons in real time, click on these links https://www.ecowitt.net/home/index?id=9393 (https://www.ecowitt.net/home/index?id=9393)  https://www.ecowitt.net/home/index?id=21281 (https://www.ecowitt.net/home/index?id=21281)  [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on November 15, 2020, 12:18:05 PM
here I am after some time, I had to perfect the Davis ventilated h24, it seemed that with our wh31EP he didn't want to go :) here is today's data 15/11/2020
station 1
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station 2
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the two metspec rad-02 and rad-14 are very good, but the ventilated davis is equally good;) certainly the radiation in this period is not at the top, but more or less you can guess the goodness of the screens;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on November 16, 2020, 01:34:07 PM
data as of 11/16/2020 screens in comparison  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
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day with sun but also clouds, in the first part of the day no or very weak wind (note the behavior of the screens in this condition) then the wind increased, and everything returned to normal, excellent performance of the 24-hour ventilated davis but also of the rad-14 (metspec) [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on November 20, 2020, 11:51:00 AM
data of 20/11/2020  screens in comparison:  [ You are not allowed to view attachments ]
position 1:
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station 2: [ You are not allowed to view attachments ]
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solar day with no or very weak wind, and when the wind is lacking, I know pains the ventilated davis dominates the comparison in its position, the rad-14 is really remarkable in the first part of the day, it behaves almost like the windy, and accentuates the famous the pro's problem in those hours, the rad-02 is fine, the davis 7714 suffers enough, a very interesting day despite being ahead of the season  =D> [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on November 25, 2020, 12:33:58 PM
data of 11-25-2020 schemes in comparison [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
station 1
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station 2
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solar day with some clouds with very weak wind, interesting graphics the ventilated davis is the master, but the rad-14 is no joke, with really interesting performances even the rad-02 is fine, the davis 7714 defends itself as it can, but not keeps pace with others  ;) [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on November 27, 2020, 11:53:19 AM
data today 27/11/2020 station 1  [ You are not allowed to view attachments ]
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station 2  [ You are not allowed to view attachments ]
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day with a lot of sun, weak wind and low solar radiation, these are the results  =D> [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on December 01, 2020, 02:25:09 PM
data today 01/12/2020 position 1  [ You are not allowed to view attachments ]
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station 2  [ You are not allowed to view attachments ]
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winter day, the first with a good minimum, sunny and weak wind from the N, low solar radiation, but interesting the trend of the screens, with the ventilated and the rad -14 dominating in these conditions of poor ventilation  [tup] :eek:
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on December 16, 2020, 12:49:18 PM
data today 16-12-2020 station 1  [ You are not allowed to view attachments ]
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station 2  [ You are not allowed to view attachments ]
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today very interesting graphs, and makes us understand the importance of the wind component, today almost absent or really very weak, despite the fact that the solar radiation was low, surprising results the wind dictates the law and is normal in these conditions, but the two metspecs? but above all the rad-14 which reaches -1 degree from the pro? certainly nothing definitive, maybe next spring-summer will be the opposite, but ....... [tup] ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on January 01, 2021, 12:05:30 PM
good afternoon and best wishes for a happy new year to everyone since I'm writing I also show you today's data which are interesting,
data today 01/01/2021 position 1  [ You are not allowed to view attachments ]
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station 2  [ You are not allowed to view attachments ]
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 [ You are not allowed to view attachments ]  New Year's day in good weather and no or weak wind, despite the low solar radiation, there was a disruption in the behavior of the screens one thing is certain the wind component in a comparison is decisive  =D> [tup] :-P
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on January 29, 2021, 03:06:00 AM
dati di oggi 28/01/2021 postazione 2  [ You are not allowed to view attachments ] day with sun and the radiation starting to rise a little, in the data of the second station I entered the davis, the first data are interesting, and today with weak wind, the ventilated screen does its own, what I find incredible is that the rad 14 has the same trend if it maintains these performances now that the good weather arrives, we will see some good ones  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on February 03, 2021, 12:44:33 PM
data as of 02/03/2021 station 1 [ You are not allowed to view attachments ]
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station 2  [ You are not allowed to view attachments ]
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today spring day, the solar radiation begins to rise, the wind was weak, in short, a good day to put the screens in difficulty, the vp2 pro ventilated and the davis screen always ventilated with wh31EP inside are the masters, but also the rad -14 is fine, it seems to follow the ventilated as an excellent performance behavior of the rad-02 which goes in line with the meteoshield pro, the davis 7714 is fine, but in the hours with high radiation it suffers a little. [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: galfert on February 03, 2021, 01:07:35 PM
It seems to me like using the Ecowitt WH32-EP (SHT35) inside of the Davis 6838 (FARS) is a better solution than the Barani Meteoshield Pro....right?
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on February 03, 2021, 01:19:31 PM
It seems to me like using the Ecowitt WH32-EP (SHT35) inside of the Davis 6838 (FARS) is a better solution than the Barani Meteoshield Pro....right?
in conditions of no or weak ventilation, definitely yes, with moderate or strong wind the ventilated goes like the meteoshield pro, a few tenths up, it is obvious that a ventilated is always more performing see the davis vp2 pro, but pay attention to the rad-14 of the metspec really does mark a breakthrough in passive displays
Title: Re: i miei confronti ecowitt e non.....
Post by: galfert on February 03, 2021, 01:36:23 PM
The Campbell Scientific RAD14 looks impressive as does the Barani Meteoshield Pro as far as passive radiation shields are concerned but for the price of the Davis 6838 FARS as all being relatively close in price I think the win goes to the Davis. I'm speculating. Just saying that if you are going to spend around the same amount of money then I don't see how the passive solutions can justify that cost.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on February 03, 2021, 01:51:25 PM
The Campbell Scientific RAD14 looks impressive as does the Barani Meteoshield Pro as far as passive radiation shields are concerned but for the price of the Davis 6838 FARS as all being relatively close in price I think the win goes to the Davis. I'm speculating. Just saying that if you are going to spend around the same amount of money then I don't see how the passive solutions can justify that cost.

in my opinion with the tests carried out so far, if I had to buy a screen, I would buy the metspec rad-14, it costs less than the meteoshield pro, and much less than the ventilated davis, but to be sure I have to wait this summer, to have the definitive confirmation of the his goodness
Title: Re: i miei confronti ecowitt e non.....
Post by: galfert on February 03, 2021, 03:07:06 PM
Well when I check pricing for the US I get the following.

$214 - RAD14 and I imagine that there is some additional shipping which I couldn't get easily?
$221.23 - Davis 6838 from Scaled Instruments + $24 shipping.
€200 = $240 - Barani Meteoshield Pro + €100 for world wide shipping!

Potentially the RAD14 could be cheaper if shipping is reasonable. But it will likely best case end up the same cost as the Davis (only $7 price difference, you can't call that cheaper...that is the same when you are talking lower $200 range).  And I'm not sure if there is a better dealer in the US for the Barani, because €100 for shipping is retarded. If you take shipping out of the equation the Davis wins as they are all in the lower $200 range.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on February 03, 2021, 03:32:46 PM
Well when I check pricing for the US I get the following.

$214 - RAD14 and I imagine that there is some additional shipping which I couldn't get easily?
$221.23 - Davis 6838 from Scaled Instruments + $24 shipping.
€200 = $240 - Barani Meteoshield Pro + €100 for world wide shipping!

Potentially the RAD14 could be cheaper if shipping is reasonable. But it will likely best case end up the same cost as the Davis (only $7 price difference, you can't call that cheaper...that is the same when you are talking lower $200 range).  And I'm not sure if there is a better dealer in the US for the Barani, because €100 for shipping is retarded. If you take shipping out of the equation the Davis wins as they are all in the lower $200 range.

well yes, buying in america, yes if i had to buy the Davis ventilated in Italy, i would pay 498 dollars, if i take it on scaled between shipping and customs i would pay 375 dollars, and it would arrive after 30/35 days in this covid period, while the meteoschield pro is finished 310 dollars, while the rad-14 together with the rad-02 I paid 290 dollars including shipping, with the convention of meteonetwork, but the rad-14 normally costs about 200 dollars, the prices davis in Italy are madness, they cost a lot, and I still don't understand why, ](*,)
Title: Re: i miei confronti ecowitt e non.....
Post by: galfert on February 03, 2021, 03:51:28 PM
Very interesting how what is cheaper for me is not what is cheaper for you  :grin:

I suppose the good news is that these are all good options.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on February 14, 2021, 12:11:00 PM
data as of 02/14/2021 station 1  [ You are not allowed to view attachments ]
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station 2  [ You are not allowed to view attachments ]
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today quite cold day, indeed the coldest so far this winter, ventilation sustained by N / NW with gusts up to 70 km / h, look at the behavior of the ventilated davis vp2 pro and the ventilated davis screen with WH31 EP sensor, in these conditions they have a good detachment from passive screens, so it is not certain that ventilated is always the best solution  ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on February 24, 2021, 12:52:46 PM
data today 24/02/2021 station 1 [ You are not allowed to view attachments ]
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station 2  [ You are not allowed to view attachments ]
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it is evident that with the strong wind the ventilated ones fail  :idea: while the passives are the masters to tell the truth I did not think this spacing 0.5 / 0.6 tenths  ](*,)  [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on February 28, 2021, 01:22:09 PM
data of 02/28/2021 station 1 [ You are not allowed to view attachments ]
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station 2  [ You are not allowed to view attachments ]
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today a day with good solar radiation, but with strong mistral wind, with gusts up to 60km / h, in these conditions the davis vp2 pro and the ventilated Davis screen suffer badly while the passives are partying  #-o
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on March 08, 2021, 01:19:26 PM
data of 08/03/2021 station1 [ You are not allowed to view attachments ]
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station 2 [ You are not allowed to view attachments ]
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day with good solar radiation, and finally with weak wind, at least for the first part of the day, ideal conditions for the ventilated davis vp2 pro that dictates the law, excellent rad-14 also rad-02 fared well, the davis ventilated it went well in the first part of the day, then with a little more wind it went up, all in all even the davis 7714 doesn't mind the met-pro always shows that little "problem" in the morning and then comes back to him. [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on April 02, 2021, 03:27:18 PM
comparison of 02/04/2021 station 1  [ You are not allowed to view attachments ]
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station 2  [ You are not allowed to view attachments ]
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day with a lot of sun, first weak wind then increasing, as always the vp2 pro ventilated with increasing wind gives something to the passive screens, in station 1 I added the GW1001 ecowitt, let's see how it fares, :-)  [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: jwbos on April 05, 2021, 10:03:09 AM
Hi Ivano, I've been reading through this post. Thanks so much for your detailed documentation and analysis. I'm new to all this and have found your posts very informative.

I have a quick question - why would the ventilated radiation shields perform worse than passive ones in high wind? My intuition would have expected them to be the same.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on April 05, 2021, 11:17:20 AM
Hi Ivano, I've been reading through this post. Thanks so much for your detailed documentation and analysis. I'm new to all this and have found your posts very informative.

I have a quick question - why would the ventilated radiation shields perform worse than passive ones in high wind? My intuition would have expected them to be the same.
hello, in ventilated screens the same amount of air always enters, i.e. that sucked in by the fan, while in passive screens the strong wind arrives directly on the sensor, and this gives an advantage that the ventilated one does not have, in the case instead the wind is absent, or very weak, the ventilated has an advantage as it has that flow of air that sucks the fan while the passives do not, and go into difficulty,
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on April 14, 2021, 12:59:40 PM
meteoshield pro comparison with WH32EP inside, GW1001 ecowitt of 13/04/2021 station 1
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I also insert the comparison of anemometers  [ You are not allowed to view attachments ]   [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on April 27, 2021, 04:20:15 AM
data of 26/04/2021 station 1 [ You are not allowed to view attachments ]
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station 2  [ You are not allowed to view attachments ]
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finally a sunny day and up to 11 with no or weak ventilation, in these conditions the gw1001 goes crazy. all the limits of the small screen come to the surface, the ventilated are the masters, but also the rad-14 has performances similar to a ventilated, excellent performance of the davis 7714 with wh31EP inside,
the rad-02 more or less follows the metpro- the lastem defends itself  =D>
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on May 05, 2021, 02:14:04 PM
the test of the vn1900 ecowitt started a few days ago, here are the first results,
station  test  [ You are not allowed to view attachments ]  the comparison is with the meteoshield pro with wh32 EP inside, but also with the gw1001
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 [ You are not allowed to view attachments ]  comparison of anemometers  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  as temperature values ​​it seems to be going really well  we'll see  :-)
this station should be a low cost entry level , first impressions are positive, but it is only the beginning as we see what happens over time  [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: jwbos on May 05, 2021, 09:09:25 PM
What is the VN1900?
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on May 06, 2021, 01:52:39 AM
What is the VN1900?
hello, the vn1900, is a new station from ecowitt, which is not yet on the market, because it is in the design and testing phase,  [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: Gyvate on May 06, 2021, 02:05:45 AM
Hi, in order to be precise,
istn't it WN1900 (Weather station, No solar panel as per the Ecowitt acronym scheme) ? And not VN ?
Title: Re: i miei confronti ecowitt e non.....
Post by: zoomx on May 06, 2021, 04:59:53 AM
Yes WN1900AE is written on the back of my console, I am a beta tester too.

The E at the end I believe is for Europe since it uses the 869MHz band.
Title: Re: i miei confronti ecowitt e non.....
Post by: Gyvate on May 06, 2021, 06:45:01 AM
Yes WN1900AE is written on the back of my console, I am a beta tester too.

The E at the end I believe is for Europe since it uses the 869MHz band.
Not sure about that - its usually the "A" which stands for 868 MHz - see https://www.wxforum.net/index.php?topic=40730.0, acronym scheme.
"E" is probably something else. Like "extra, extended, enhanced ..." as in WH2320E.
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on June 04, 2021, 05:39:33 AM
good morning ... let's try to resume some comparison tests between screens, in this period under examination there are the screens of the Metspec rad-02 and rad-14 but also the new station of the ecowitt ws-1900 which is not yet on sale but indeed in the testing phase .Start with Metspec- postion 2 [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  ws-1900 station  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  these are the final graphs, there is a bit of wind that disturbs the comparison, but still it's okay, :-) excellent performance of the ws1900 which is even better than the gw1001, despite having the same sensor group, but it has a difference of shape of the case, which allows it to improve its performance even if slightly, as regards the two Metspecs, excellent performance :-P [tup]
Title: Re: i miei confronti ecowitt e non.....
Post by: Gyvate on June 04, 2021, 06:04:57 AM
Great, Ivano !  =D>
Unfortunately the WN67 is a "diet" version of the WS69 (WH65) sensor array - I will check with Ecowitt if the T/H/rain gauge replacement set they offer is already of the new WN67 quality (assuming that that good performance comes from the material used).
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on June 05, 2021, 11:25:45 AM
hi everyone, the heat begins, the weather comparisons begin: 8: in this period I am concentrating, on these screens the two metspecs: rad-02; rad-14 then the ventilated davis vp2 pro and the much mistreated davis 7714: felice3: obviously as a reference I will use the meteoshield pro, here are the results of yesterday 04/06/2021 station 2
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 [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  comparison meteoshield pro- davis vp2 pro ventilated  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]
comparison meteoshield pro- davis 7714 with wh31EP station 1  [ You are not allowed to view attachments ]   [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  the conclusions to you, I hope it will be useful to you  =D> [tup]


Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on June 19, 2021, 11:46:43 AM
data of 06/18/2021 weather station  [ You are not allowed to view attachments ]
meteoshield pro-davis vp2 pro(ventilated) comparison
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 meteoshield pro-Davis 7714 comparison (wh31EP)
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comparison meteoshield pro-RAD 02-RAD 14
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meteoshield pro-WS80-VN1900 comparison (test)
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comparison of anemometers
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 from 06:00 to 09:00 with no or very weak wind, the results of the ventilated and RAD 02-14 stand out then the wind starts to grow and everything returns as usual, to note in the same time frame the ws80 splashes all the way 'up' but also the vn1900 even if to a lesser extent, which in any case in the end gives an excellent performance  =D> ;)
Title: Re: i miei confronti ecowitt e non.....
Post by: ivano on June 26, 2021, 10:57:55 AM
data of 06/25/2021 location: [ You are not allowed to view attachments ]
 comparison  meteoshiel pro (wh32 EP) -Davis vp2 Pro (ventilated)
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 comparison  meteoshiel pro (wh32 EP) -Davis 7714 (Wh31 Ep)
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comparison  meteoshiel pro (wh32 EP) -Rad 02-14 (Wh31 Ep)
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comparison  meteoshiel pro (wh32 EP) -Ws80-Vn1900 (test)
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comparison  meteoshiel pro (wh32 EP) -Lastem(Dp50 EP)
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comparison of anemometers
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interesting day, the hottest of this year excellent radiation weak wind and high temperature values, just look at the maximum, the Ecowitt a little suffering, but it is in things, well the Metspecs, Lastem a little less, surprising the Davis7714  =D> [tup]
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on June 29, 2021, 06:18:11 AM
data of 28/06/2021 location  [ You are not allowed to view attachments ]
Ccomparison Metpro (WH32 EP) -Davis VP2-PRO (ventilated) [ You are not allowed to view attachments ]
Ccomparison Metpro (WH32 EP) -Davis 7714 (WH31 EP) [ You are not allowed to view attachments ]
Ccomparison Metpro (WH32 EP) -RAD 02-14 (WH31 EP) [ You are not allowed to view attachments ]
Ccomparison Metpro (WH32 EP) -WS80-VN1900(test) [ You are not allowed to view attachments ]
Ccomparison Metpro (WH32 EP) -Lastem (WH31 EP) [ You are not allowed to view attachments ]
comparison of anemometers  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  

excellent day to compare screens and stations, average wind around 5 km / h excellent solar radiation, these are the results, the conclusions are up to you  ;) =D>
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on July 06, 2021, 01:52:44 PM
 [ You are not allowed to view attachments ]  the other morning, the usual 2/3 hours of suffering of the meteoshield pro, in no or very weak wind conditions, ](*,)
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on July 08, 2021, 03:38:11 AM
data of 07/07/2021 location  [ You are not allowed to view attachments ]
comparison meteoshield pro (WH32 EP) -Davis VP2 PRO (ventilated)
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comparison meteoshield pro (WH32 EP) -Davis 7714(WH31 EP)
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comparison meteoshield pro (WH32 EP) - Metspec RAD 02-14 (WH31 EP)
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comparison meteoshield pro (WH32 EP) -Lastem (WH31 EP)
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comparison meteoshield pro (WH32 EP) -WS80-VN1900(test)
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comparison of anemometers
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good day to make comparisons between the various weather systems, excellent solar radiation ventilation on average 8 KM / H in the central hours, with fairly high temperatures, almost 35 °, excellent performance of Davis 7714 with the WH31 EP inside, very well also the 2 Metspec RAD02-14 always with WH31 EP inside, the ventilated davis vp2 pro suffers as well as the Lastem, hard day also for the WS80, very good instead the VN1900 (test), I just have to wish you good view of the graphs .  =D> [tup]
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on July 10, 2021, 05:25:43 AM
data of 09/07/2021 location [ You are not allowed to view attachments ]
comparison meteoshield pro (wh32 EP) -Davis VP2 PRO (ventilated)
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comparison meteoshield pro (wh32 EP) -Davis7714(WH31 EP)
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comparison meteoshield pro (wh32 EP) -RAD 02-14 (WH31 EP)
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comparison meteoshield pro (wh32 EP) -Lastem WH31 EP)
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comparison meteoshield pro (wh32 EP) -WS80-VN1900 (test)
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comparison of anemometers
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good day yesterday to see differences in the various systems, average wind about 5km / h good solar radiation and high temperatures
I added some photos to the graphs to better understand what we are comparing, sometimes we take this for granted, but for those approaching this world, it may seem Arabic  =D> [tup]
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on July 13, 2021, 05:02:10 AM
data from yesterday 12/07/2021 location [ You are not allowed to view attachments ]
comparison meteoshield pro (WH32 EP) -Davis VP2 PRO (ventilated)
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comparison meteoshield pro (WH32 EP) -Davis 7714(WH31 EP)
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comparison meteoshield pro (WH32 EP) -RAD 02-14(WH31 EP)
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comparison meteoshield pro (WH32 EP) -WS80-VN1900 /test)
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good day to make a comparison, these are the results  =D> [tup]
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on July 26, 2021, 04:54:21 AM
comparisons of 25-07-2021 station [ You are not allowed to view attachments ]

comparison meteoshield pro (WH32 EP)-Davis vp2 PRO (ventilate)
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comparison meteoshield pro (WH32 EP)-davis 7714 WH31 EP
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comparison meteoshield pro (WH32 EP)-RAD 02-14 WH31 EP
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comparison meteoshield pro (WH32 EP)-WS80-VN1900(test)
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comparison meteoshield pro (WH32 EP)-Lastem WH31 EP
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comparison of anemometers  [ You are not allowed to view attachments ]  [ You are not allowed to view attachments ]  

good day to make a comparison, excellent solar radiation and weak wind, you notice the suffering in the early hours of the sun of the 2 ecowitt, with important peaks, due to the small size of the solar screen, the ventilated vp2 pro is better when the wind is weak or absent, excellent performance of the Davis 7714 with wh31 EP sensor, and also the two Metspecs have excellent performance, to be noted in the wind charts, the ws68 which goes hand in hand with the Davis vp2 pro anemometer  =D> [tup]
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on July 29, 2021, 10:54:05 AM
data of 07/27/2021 location  [ You are not allowed to view attachments ]
Meteoschield Pro comparison (WH32 EP) -Davis VP2 PRO (ventilato)
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meteoschield pro comparison (WH32 EP) -Davis 7714(WH31 EP)
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meteoschield pro comparison (WH32 EP) -RAD 02-14 (WH£! EP)
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meteoschield pro comparison (WH32 EP) -WS80-VN1900(test)
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meteoschield pro comparison (WH32 EP) -LaSTEM WH31 EP)
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comparison of anemometers
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hot day yesterday which recorded a maximum of 38.4 ° (2nd highest value of this year) these are the results ... amazing performance of davis 7714 with EP sensor inside good performance of 2 metspecs and ecowitt all in sum they defend themselves (better the vn1900) the lastem does what it can, for the vp2 pro ventilated, the same is always true, as long as the wind remains weak (below 5 km / h) it is unsurpassable, when the wind increases, the situation changes in the anemometric comparison to note the WS68 (ecowitt) perfectly aligned with the wind sensor of the davis vp2 pro  =D> [tup]
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on August 20, 2021, 06:39:59 AM
comparison of 08-19-2021 station  [ You are not allowed to view attachments ]

comparison meteoshield pro (WH32 EP) -Davis VP2 PRO (ventilated)
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comparison meteoshield pro (WH32 EP) -Davis 7714 (WH31 EP)
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comparison meteoshield pro (WH32 EP) -RAD 02-14 (WH31 EP)
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comparison meteoshield pro (WH32 EP) -Lastem (WH31 EP)
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comparison meteoshield pro (WH32 EP) -WS80-VN1900 (Ecowitt)
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comparison of anemometers
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we resume after the mid-August holidays with our comparisons, yesterday windy day, but with good solar radiation, as usual when the wind is sustained, the ventilated screens suffer a little, while the performance of the davis 7714 is to be emphasized, which with the probe sensor positioned as Davis recommends, it works great :), excellent performance even of the 2 rad 02-14 of the Metspec, even the ecowitts defend well  =D> =D>
Title: Re: Comparison of solar schemes and weather stations
Post by: hmderek on August 20, 2021, 07:21:23 AM
Haven't read the entire topic. Do you have a theory as to why the ventilated Davis performs so differently?
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on August 20, 2021, 07:30:39 AM
Haven't read the entire topic. Do you have a theory as to why the ventilated Davis performs so differently?

hello, when the wind is above 10 km / h the ventilated starts to worsen its performance, the reason is simple, the ventilated always sucks the same amount of air both with no wind and strong wind, while for passive screens with strong wind, they work better, as more air arrives on the sensor, when the wind is absent, or weak, the speech changes the ventilated ones work well and are unsurpassed, while the passives suffer, so before installing a solar shield, it is necessary to understand the microclimate of the installation area, if it is well ventilated all year round, there is no need to install a ventilated one, but better a good passive screen,
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on August 27, 2021, 07:20:55 AM
hi, look at how a ventilated davis vp2 behaves with the arrival of a storm, the response delay compared to a passive shielding is considerable  ](*,)
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Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on August 29, 2021, 11:55:03 AM
differences in rain guest
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as is well known a bit of overestimation of the vp2 pro (single chamber) the wh40 a bit underestimates this too is well known, the meteorain of Barani is doing well, a bit under ... in short, a nice mess  :-|
Title: Re: Comparison of solar schemes and weather stations
Post by: zoomx on August 31, 2021, 04:15:33 AM
Ivano,
can you rewrite the rain values ordered by position?
Maybe WN1900 and VP2 are close together?
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on August 31, 2021, 06:52:51 AM
Ivano,
can you rewrite the rain values ordered by position?
Maybe WN1900 and VP2 are close together?

hi Zoomx, there is no pre-established order, the reference is the manual TFA without lid, yes the VN-1900 marked the same amount of rain as the VP2pro ,this comparison was made in conditions of heavy rainfall, with a rain / rate up to 205 mm / h  ;)
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on October 24, 2021, 05:41:24 AM
summertime in summary, here are the extremes of the screens and weather stations compared, the values ​​refer to the maximum and minimum
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  [tup]
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on December 02, 2021, 12:58:09 PM
yesterday you can see the difference between a level radiation shield and the all in one stations with the small radiation shield, in certain weather conditions, in this case weak wind, absent, this does not mean that these stations are not valid , indeed ... they just have limits, look here
comparison metpro-Davis vp2 pro (ventilated)
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comparison metpro-Davis 7714
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comparison metpro-RAD14-RAD02
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comparison metpro-LSI Lastem
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comparison metpro-WS80 (Ecowitt)
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comparison metpro-GW1001 (Ecowitt)
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comparison metpro roof-metpro soil
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comparison metpro-GW1001 (Ecowitt)
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all these data were processed at my weather observatory in Ortelle (Lecce) Italy, good vision  [tup]
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on April 18, 2022, 06:08:46 AM
hello everyone, let's continue with the comparisons between weather stations and sun screens, I use a PDF file to be able to put all the comparisons in a single file
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P.S why the attachment is not seen in the post? is a 764 Kb PDF file  ](*,)
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on May 04, 2022, 01:31:17 PM
comparison screens / stations of 03/05/2022

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good vision  [tup]
Title: Re: Comparison of solar schemes and weather stations
Post by: saratogaWX on May 04, 2022, 04:01:54 PM
I've fixed the PDF option.. it no longer tries to display inline (which was causing the non-display issue).  It now is a link, and clicking on it will open the PDF in either the browser or Acrobat (depending on your local settings).
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on May 04, 2022, 04:12:08 PM
I've fixed the PDF option.. it no longer tries to display inline (which was causing the non-display issue).  It now is a link, and clicking on it will open the PDF in either the browser or Acrobat (depending on your local settings).
great perfect, I figured there was a problem, thanks [tup]
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on May 05, 2022, 07:39:07 AM
data yesterday 04/05/2022 hard and demanding day for the instruments
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Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on May 10, 2022, 03:51:25 AM
Hello everyone, comparison data of 09/05/2022
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good vision at all  :-)
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on May 12, 2022, 09:47:34 AM
good morning everyone, data from yesterday 11/05/2022, temperatures starting to rise
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good vision ;)
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on May 13, 2022, 02:19:46 PM
good evening everyone, data from yesterday 12/05/2022
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good vision at all
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on May 16, 2022, 03:43:46 AM
good morning everyone, comparisons of 14/05/2022 and 15/05/2022, temperatures and solar radiation are starting to be interesting, close to 30 ° some stations went into difficulty
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good vision at all [tup]
Title: Re: Comparison of solar schemes and weather stations
Post by: ivano on May 19, 2022, 06:02:31 AM
good morning everyone, comparisons of yesterday 18-05-2022
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day characterized by strong north wind, with good solar radiation and quite warm temperatures for the period, as already known difficult conditions for the ventilated davis vp2 pro,
in these conditions even an entry level like the gw1001 (Ecovitt) does better
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