Really? I've seen it done before.
I myself just drilled a hole in the side of my coke fridge and ran my probe and other wires through there, then tape it sealed. The only thing electrical I have in the bator is the flexxwatt and the fan blowing(24/7) over it. I have used it four years straight, hatched many clutches with no problems whatsoever. I also keep tubs with rocks and water on the inside bottom to stabilize temps and humidity. I put some grating on the tubs and made another shelf that way.
Hope you hatch some great clutches in there![]()