Ok so my digital humidity module is registering about 50.3 to 53.7 RH. It is set on 40. It ran all night and its at 53.2. I went to the petshop, bought a cheap hygro. and it is saying 43. It is on the tray where my eggs will go, the sensor for the digital unit is on the lid. The digital unit releases water when needed but not sure why its set on 40 and the humidity is still way off. When it drops below 50, the pump turns on. Its a Brinsea so I hoped it would have been more accurate. At least my temp is stable. Which one should I believe? By the way, no eggs in it yet.