What you don't see is the heating pad and De-humdifier inside unit.
Two INKBIRD CONTROLLERS (1) for temperatures and (1) for Humdity
The Inkbird left controls Refrigerator & Heating Pad. set @ 48*F
Inkbird right controls Humidifier & De-Humidifier set @ 80%
Oh I also have a mini computer fan inside on a timer that circulates air for 1 minute every 6 hours.
