Hi, Ive got a solar/mains powered exhaust fan in my Atrium that I would love to control with a Tapo Smart Plug but I cant find a way to put a switch in there that the plug can control. I have the same

I want to create automation to swich heater if temperature falls below set temp but only if humidity is above set value. Its to prevent dew point and moisture building on the corrugated roof in my sto