Topic: Barani Meteoshield Pro III vs Davis FARS24H vs Apogee TS100

[ivano]

Yesterday day and weak wind and brief glimpses of sunshine in the anticyclone.

Hi, I wanted to ask you at what height do you have the sensor in the meteoshield pro 3? I mean the wh, thanks

[Meteorology fan]

Hi. At a height of about 10 cm. Both SHT35 and PT1000. As here in the instructions known on the Barani website.

https://www.baranidesign.com/faq-articles/2022/8/01/how-to-properly-mount-an-ecowitt-temp-humidity-sensor-inside-the-meteoshield-pro

[Meteorology fan]

Yesterday's comparison at my location. Apogee TS-100 vs Barani Meteoshield Pro III. Charts below.

[ivano]

Hi. At a height of about 10 cm. Both SHT35 and PT1000. As here in the instructions known on the Barani website.

https://www.baranidesign.com/faq-articles/2022/8/01/how-to-properly-mount-an-ecowitt-temp-humidity-sensor-inside-the-meteoshield-pro

HI. but have you ever tried to raise the wh31/32 sensors in the meteoshield pro 3 by 2 cm? you will see that maybe this graph will change.

[Meteorology fan]

I have established there as Jan Barani suggested on his website. Sensirion SHT35 is devoid of a filter. I plan to do some work on my station in the next few days and may pick up some more SHT35 and PT1000 sensors in the Barani Gen III

[Meteorology fan]

Yesterday's conditions with low winds and anticyclonic weather in Poland. Comparison of Apogee TS-100 vs Barani Meteoshield Pro III.

[Meteorology fan]

Reported on March 1, 2025 below from SHT35 for Barani Meteoshield Pro III and Apogee TS-100.

[Jasper3012]

Most of the charts you’ve been posting still show a very good performance from the Barani, with an error of only a few tenths of a degree and only lasting a few hours. This is on bad days aswell, most days of the year will have some wind and therefore close to no error.

[Meteorology fan]

Yes, in the morning is the biggest mistake on Barani Meteoshield Pro III. Depending on the angle of the sun, disputes will also be in the afternoon and evening. In my location especially in spring and summer. You have to remember that it's a passive shield and any plastic one has a lot of radiation errors at low angle and low wind speed.

I am testing further and will restart the loggers on the PT1000 in each shield in the days to come. I like the Apogee TS-100 and plan to give the Smart Cellino a go in the future. Perhaps replacing Davis FARS24H due to its problematic design for maintenance and heavy load on the mast. Relative to the TS-100, I am not satisfied with its performance in some weather scenarios. The FARS in the Davis FARS24H is less efficient than in the Apogee.

[Jasper3012]

"A lot of errors" seems a bit harsh, but oh well. I'm also not sure why you keep mentioning the plastic material as part of the issue, wooden Stevensons screens also suffer from this effect.

Keep in mind that the SmartCellino is quite heavy, weight wise, a lot heavier than the Barani MS Pro. The shield itself is quite light, but the mounting bracket is a lot heavier than that of the MS Pro.

[Meteorology fan]

Stevenson Screnn, due to its design, has less radiation error on snow, as well as in normal conditions at low sun angle than Barani Meteoshield Pro III. Winds as high as 10-14 km/h and in the morning the Ms Pro III generates a considerable radiation error, even though there is passive ventilation. As you can see, the helix in these conditions realistically does nothing. The worst is when the wind blows from the heated surface of the radiation shield, that's when the error is greatest, because it pushes the heated air from the heated material.

[Meteorology fan]

Warmest day since the beginning of the year and comparison. Apogee TS-100 vs Barani Meteoshield Pro III in the wind and sun of March.

[Meteorology fan]

Comparison of Apogee TS-100 vs Barani Meteoshield Pro III from today in relatively low wind and sunny weather.

[Meteorology fan]

A sunny, high day with weak winds. Readings only from SHT35. Irradiance and wind measurements from WS68 at shield height. Comparison of Apogee TS-100 vs Barani Meteoshield Pro III vs Davis FARS24H.

[Meteorology fan]

Comparisons from two days ago. Barani Meteoshield Pro Gen III vs Apogee TS-100 on a solar day. Relatively weak winds and more than 500 w/m2 during anticyclonic weather.