Two sensors

I have two tags. I have them placed next to each other and notice a significant difference in temperature. Does anyone know why that is? See the attached photos.

Hi @rbouwman ,

There are few variables here to consider, the first and the most significant is that RuuviTag and RuuviTag Pro uses different sensor component for measuring temperature. Second obvious variable would be heat/cold transfer from surfaces. Third, but maybe not the case here, is sensor step time or the time that it takes from any sensor to adapt to surrounding environment before the measurements become stable.