My big project for the summer of 2021 is adding a fan aspirated radiation shield to my setup. My primary shield – the Barani MeteoShield Pro – is a superb product, but a passive shield it remains. It suffers from overheating in windless conditions. Those conditions do not occur too often at my location, but…
Category: Thermometers
Monitoring radiation shield performance
Spring is here. Today was the first ‘warm’ day (> 20°C) of the year. Conditions where solar radiation errors will start cropping up in the temperature data. Accuracy of temperature readings is a surprisingly complex subject. But any attempt to get accurate readings starts with shielding the sensor from direct or indirect sunlight and ensuring…
Upgrade to the SHT35
Around New Year’s I took the time to finally bring a new Sensirion SHT35 temp/hygro sensor online. It’s an upgrade compared to the SHT31 sensor chip Davis uses for their Vantage Pro 2. On top of it being more precise (+/- 0,1 C in stead of 0,3 for the SHT31) it also registers an extra…