Author Topic: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100  (Read 22889 times)

0 Members and 1 Guest are viewing this topic.

Offline Dvalente75

  • Senior Member
  • **
  • Posts: 75
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #100 on: January 29, 2025, 05:17:40 AM »
Yes, the site is all set up like this! It's a company that has decided to present its products like this! It can be accepted or not! Honestly, I don't like it! I would like more professionalism on their part! We know it by now! However, I respect their choice of company! If I were Jan, I would have done different things but I can understand! It's not easy to make a product known in an environment with big companies and big names and you have to do something! For me, the helical-shaped screen remains a great stroke of genius!

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #101 on: January 29, 2025, 06:34:22 AM »
It is certainly an interesting product with an unusual design, but as numerous tests in many climate zones have proven, it will not replace the WMO meteorological Screnn, as J. Barani suggested to us in the marketing brochures. If it were such a super design, we would see its use en masse in many meteorological offices and this is not the case. The flaw with the low angle eliminates the Barani Meteoshield Pro III for measurements at first order stations (WMO), because the cage does not suffer from it, or to a very limited extent. I have seen numerous comparisons of the Barani with the Stevenson Screnn, Apogee TS-100 and Davis FARS24H. It quickly became apparent that J. Barani's declarations missed the reality.

This helix in some conditions can help in some deteriorate the properties of Meteoshield Pro III. The Barani company was driven by financial motives, hence such marketing to their potential customers on their website. Only coloring the reality will sooner or later come to light and many people will find out.
« Last Edit: January 29, 2025, 06:36:22 AM by Meteorology fan »
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline Dvalente75

  • Senior Member
  • **
  • Posts: 75
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #102 on: January 29, 2025, 06:46:50 AM »
How is Davis Fars H24 going in general?

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #103 on: January 29, 2025, 07:03:05 AM »
Well and certainly better in terms of overheating most of the time than the Barani Meteoshield Pro III. However, I think the Apogee TS-100 has better ventilation and more flow. Too bad the price is so high. Isolation in the Apogee Ts-100 is also better than in the Davis FARS24H.
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #104 on: January 29, 2025, 03:04:39 PM »
Here's a comparison from today. At maxima, minimal differences negligible. Graphs for Apogee TS-100, Barani Meteoshield Pro III and Davis FARS24H below with PT1000 and SHT-35 and data in tables. The next few days will bring further comparisons, especially tomorrow's day, which promises to be sunny and with plenty of sunshine. Loggers with PT1000 already programmed.
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #105 on: January 30, 2025, 02:38:53 PM »
You can see how after 10:20 the power supply to my Apogee TS-100 went off the grid for a few minutes and the windmill did not work, the sun was shining and the TS-100 overheated relative to the Davis FARS24H by about 0.5 degrees. The gentlemen from the power plant were dressing up today to replace the meters, because the legalization was ending, and about 5-10 minutes there was no power in my part of the building, from where I supply power to the TS-100 for the garden.

Overheating problem in the morning on Barani Meteoshield Pro III well captured on PT1000 and SHT35. The low angle and relatively low wind did not serve Ms Pro III today what I expected with the relatively low sun angle in late January. This did not translate the morning overheating into an overestimation of t-max in a significant way. Too bad I lost power to the Apogee TS-100 after 10:20 local time but after several minutes it was restored.

Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline Dvalente75

  • Senior Member
  • **
  • Posts: 75
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #106 on: January 30, 2025, 02:45:37 PM »
I don't remember if you told me! How high up in the Meteoshield is the probe?

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #107 on: January 30, 2025, 02:49:08 PM »
About 10 cm and there is a PT1000 and SHT35. They are not in contact, but are close to each other. SHT35 lacks a filter, PT1000 has a thin probe and responds very quickly. Loggers synchronized to 1 s, recording every 1 minute on PT1000. Assembly done, as in Barani's instructions on the page indicated.
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #108 on: January 31, 2025, 03:02:19 PM »
A comparison from today. It looks like there is a wet bulb occurrence on the Barani Meteoshield Pro in windless weather
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline ivano

  • Forecaster
  • *****
  • Posts: 310
    • http://www.supermeteo.com/stazione/ortelle/
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #109 on: February 02, 2025, 09:02:21 AM »
Hi, I wanted to ask you if the apoge manages the fan based on solar radiation, or does it always work with the fan at maximum? also can I see a photo of your comparison station? I tried looking for it but couldn't find it, thanks.
1)3 gw1000 +1 GW2000+GW3000
2)hp2551
3)ws90
4)ws68
5)2 wh32 EP
6)5 wh31 EP
7)2 meteoschield pro 3° gen
8)1 New Fars meteoshield pro 3° gen
9) davis 7714 Black
10) 2-wh40
11)schermo solare RAD-14 Metspec
12)schermo solare RAD-02 Metspec
13)Meteorain 200 compact (Barani)
14) Davis vp2 pro ventilata
15) GW1001 ecowitt
16)schermo solare  Comet system da Cometeo
17)Apoge TS-100
18)Meteoshield pro 2 gen
template http://ortellemeteo.altervista.org/pwsd/
webcam :https://rtsp.me/embed/tRhazi3z/
http://www.supermeteo.com/stazione/ortelle/

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #110 on: February 02, 2025, 10:43:28 AM »
Hi. Photos of my garden are in the thread about Barani and their products. There you have a picture: Barani too good to be true. I deleted all photos from my phone because I was slowing down the memory. As for the Apogee TS-100, it runs on 12V on solar days, while at night it runs on a minimum of 8.1V. I use a voltage regulator. In general, Apogee after my months of testing alongside Davis FARS24H and Barani Meteoshield Pro Gen III offers better data quality. We have several people in Poland what also use Apogee this way. I plan to add a SiAp to this set soon, replacing the Barani shield due to the heavily emphasized problem of low angle solar radiation in low wind.
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #111 on: February 10, 2025, 02:48:56 PM »
Today was a sunny and relatively windy day. It is under the influence of an anticyclone. The air mass is quite dry, polar-continental from eastern Europe. Below is a comparison of the Apogee TS-100, Barani Meteoshield Pro III and Davis FARS24H. The sensors used were PT1000 with a recording interval of 1 minute, SHT35 with an interval of 5 minutes. In addition, mean wind and gust data were imposed. The problem with Barani at a lateral angle was present despite the wind.
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #112 on: February 10, 2025, 02:52:34 PM »
The number of attachments is limited. Below maximum, minimum values for PT1000 and SHT35 without filters.
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #113 on: February 13, 2025, 02:47:46 PM »
Today's behavior of the Barani Meteoshield Pro III to Apogee TS-100 at low solar angles requires no special comment. You can see everything in the graphs below. Despite the wind, Barani was clearly overheating and this was confirmed by PT1000 and SHT35
« Last Edit: February 13, 2025, 02:52:26 PM by Meteorology fan »
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline Jasper3012

  • Forecaster
  • *****
  • Posts: 438
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #114 on: February 13, 2025, 03:13:50 PM »
I don’t really get the point of these posts. Everyone knows a passive shield will overheat vs an active shield with little to no wind. This isn’t unique to the Barani, in fact, this shield overheats less than most other passive shields. Now that I’ve confirmed the SmartCellino still overheats somewhat during the low sun/low wind scenario, I will be going back to comparing it to the Barani. This passive vs passive comparison will shed a more definitive light on which shield performs the best.

The more interesting part of this thread is your Davis vs Apogee comparison, since these are both active shields.

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #115 on: February 13, 2025, 03:17:32 PM »
I will upload a clean Davis vs Apogee chart tomorrow. As for Barani, even winds above 2-3 m/s do not use radiation error for most of the day.
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline Jasper3012

  • Forecaster
  • *****
  • Posts: 438
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #116 on: February 13, 2025, 05:05:38 PM »
I will upload a clean Davis vs Apogee chart tomorrow. As for Barani, even winds above 2-3 m/s do not use radiation error for most of the day.

I have never recorded a significant error (0.2C+) with winds above 1-2 m/s on the Barani and SC, so I don't think this is true.

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #117 on: February 14, 2025, 12:20:41 AM »
The error is greater than 0.2 deg.C to the Apogee TS-100 at low solar angles. Even when it blows more than 2 m/s. I have an anemometer at shield height and I can see that. It is perfectly clear yesterday that despite the wind, the overheating on the Barani Ms Pro III persisted for most of the day. Wind direction is also important. Because if it blows from the side of the shield where the sun shines, overheating will occur even if it blows above 3 m/s.

Now in February the sun is about 25 degrees above the horizon and the error is clear, but it depends on the direction and speed of the wind. In the peak of summer it is at 60 degrees at my place. The error will only occur periodically in the morning, instead of most of the day. Buy if you want a Jasper3012 Apogee TS-100 and put it next to a Davis FARS24H and Ms Pro III and you will notice that even a clear airflow does not completely eliminate the radiation error in Barani. Winds above 2-3 m/s should be sufficient to eliminate radiation error.

It blows from the north side of the radiation shield, then the error is not there, because it blows from the cool side of the shield and cools the sensor. Barani will not publicly admit this, because it could affect sales of this shield.
« Last Edit: February 14, 2025, 12:26:56 AM by Meteorology fan »
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline Jasper3012

  • Forecaster
  • *****
  • Posts: 438
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #118 on: February 14, 2025, 02:06:38 AM »
The error is greater than 0.2 deg.C to the Apogee TS-100 at low solar angles. Even when it blows more than 2 m/s. I have an anemometer at shield height and I can see that. It is perfectly clear yesterday that despite the wind, the overheating on the Barani Ms Pro III persisted for most of the day. Wind direction is also important. Because if it blows from the side of the shield where the sun shines, overheating will occur even if it blows above 3 m/s.

Now in February the sun is about 25 degrees above the horizon and the error is clear, but it depends on the direction and speed of the wind. In the peak of summer it is at 60 degrees at my place. The error will only occur periodically in the morning, instead of most of the day. Buy if you want a Jasper3012 Apogee TS-100 and put it next to a Davis FARS24H and Ms Pro III and you will notice that even a clear airflow does not completely eliminate the radiation error in Barani. Winds above 2-3 m/s should be sufficient to eliminate radiation error.

It blows from the north side of the radiation shield, then the error is not there, because it blows from the cool side of the shield and cools the sensor. Barani will not publicly admit this, because it could affect sales of this shield.

I can’t speak for the Apogee as I don’t have this shield but I have definitely never experienced a significant error with 2 m/s vs the Davis. There’s possibly also a few other factors at play here. Whilst your station is quite good, the proximity of the shields + the different heights could possibly introduce a difference of a few tenths of a degree. Additionally, the fact you use instantaneous measurements from Ecowitt’s SHT-35 could also make the error seem larger than it is at times. It’s entirely possible that some of your more significant recorded “errors” are actually just a warm parcel of air passing through the Barani at the exact time of measurement. That’s why I’d recommend using sensors that measure like 7 times per minute and then use the 1-min average of those samples as your reported values. Doing something like this will eliminate some uncertainty and make your comparisons, where every tenth of a degree matters, even more scientifically sound.

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #119 on: February 14, 2025, 02:43:18 AM »
At low solar angles, the difference can exceed 0.5 degrees on Barani relative to Apogee. Even when the wind is 2 m/s, when we have the wind on the side of the plates heated by the sun. In addition to sht35, there are PT1000s working in parallel in the shields, which are calibrated. The Pt1000s are connected to loggers with 1s synchronization and averaged measurements up to 1 minute.

The correlation with wind direction and solar operation can be seen clearly. When it blows from the heated surface of the shield even 7-11 km/h, the error occurs, just if it starts blowing from the north or northeast, northwest side of the shield, the error does not occur. Even if it blows 1-1.5 m/s.

Apogee TS-100 as an aspiration shield eliminates radiation errors better than Barani Meteoshield Pro III and other passive shields at relatively low wind speeds.


I think that with each passing week the error on the Barani will get smaller and smaller, as the sun will be higher and higher above the horizon line. Now, under unfavorable conditions, the radiation error on the Barani Meteoshield Pro III persists for most of the day, projecting a t-max against the Davis and Apogee TS-100.
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline hmderek

  • Senior Contributor
  • ****
  • Posts: 204
    • Meteodrenthe
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #120 on: February 14, 2025, 08:02:53 AM »
This vendetta against Barani is still ongoing I see. Still comparing the incomparable too. Are you ever going to add other passives to actually make any sensible judgement on the Barani? For example this notion of low sun angle affecting the Barani may be true, but you are not proving anything by constantly comparing with 2 closed FARS systems that don't even expose their sensor chamber from the sides at all.

Here some effect of wind dipping under <0,5m/s, snow on surface and sun peeking through clouds with solar radiation exceeding 200 Wm2 when the passives start hurting.

 [ You are not allowed to view attachments ]
Davis VP2 - Davis WeatherLink -Sensirion SHT35 - PT100 - NTC Thermistors - Apogee Instruments TS-100 - Barani Meteoshield Pro - Davis 7714 - MetSpec RAD14 - Siap+Micros - Davis AirLink
https://blog.meteodrenthe.nl
https://meteodrenthe.nl
https://twitter.com/meteodrenthe

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #121 on: February 14, 2025, 09:50:24 AM »
This is not a vendetta, just facts. A comparison between active and passive is needed to catch the deviation between the dials. That the low angle affects the temperature measurement in the shields is a fact and you rightly confirm it. In active shields like Apogee TS-100, Met One076B the idea is precisely not to draw air from the heated discs only from below.

Interesting graph from you. It shows that it's worth having the Apogee TS-100 alongside other passive shields for comparison. Measuring the temperature is not that easy. Below something from me regarding overheating of passive shields in winds of about 3 m/s.

I believe that the measurement in an active radiation shield like the Apogee TS-100 is much better than from most passive shields most of the time. Occasionally do not represent the correct physical quantities

Passive shielding can only be had for comparison and should be top-notch right next door.

Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline hmderek

  • Senior Contributor
  • ****
  • Posts: 204
    • Meteodrenthe
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #122 on: February 14, 2025, 09:56:26 AM »
... It shows that it's worth having the Apogee TS-100 alongside other passive shields for comparison. ...

Wondering, are you seeing any nasty wet bulb effects on your Apogee? It's the main reason why I can never use it as my primary temperature sensor. Especially during the winter, when it's foggy or rainy and humidity stays in the upper 90s for days at end, the Apogee sensors will overcool significantly. This is somewhat worsened right now because my I need to reconfigure some things so I can actually reduce the fan speed, but even with low fan speeds I see this with some frequency.
Davis VP2 - Davis WeatherLink -Sensirion SHT35 - PT100 - NTC Thermistors - Apogee Instruments TS-100 - Barani Meteoshield Pro - Davis 7714 - MetSpec RAD14 - Siap+Micros - Davis AirLink
https://blog.meteodrenthe.nl
https://meteodrenthe.nl
https://twitter.com/meteodrenthe

Offline Meteorology fan

  • Forecaster
  • *****
  • Posts: 610
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #123 on: February 14, 2025, 09:59:33 AM »
At my place, during periods of foggy, low temperatures, I did not see this effect. I have been using the Apogee TS-100 since November and have had various weather situations. Also with fog. I continue to observe this dial and will soon add a Siap next to it for comparison. I believe that after so many years I have arrived at an accurate temperature measurement in most weather scenarios at my place.
Ecowitt WS90 1.3.8, WS80 1.2.5, Ecowitt WS68, Ecowitt WH31EP/WH32EP, WH40, WH57, WN34L, WH51, WN34D, HP2560_C, HP2550_C, GW1100, GW2000. Davis Vantage Pro 2, Davis Vue, Davis 6313, Hongyuv WDS2E

PT1000 4-wire - Termio 2 (3x)

Barani Meteoshield Pro II, III, Davis FARS 24H, Apogee TS100

Offline hmderek

  • Senior Contributor
  • ****
  • Posts: 204
    • Meteodrenthe
Re: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100
« Reply #124 on: February 14, 2025, 10:10:11 AM »
The silly thing is that somehow overcooling due to active ventilation feels worse than overheating due to lack of ventilation. Even though considering the entire year, overheating on passives happens more often than overcooling on the active.

Davis VP2 - Davis WeatherLink -Sensirion SHT35 - PT100 - NTC Thermistors - Apogee Instruments TS-100 - Barani Meteoshield Pro - Davis 7714 - MetSpec RAD14 - Siap+Micros - Davis AirLink
https://blog.meteodrenthe.nl
https://meteodrenthe.nl
https://twitter.com/meteodrenthe