Continuing the discussion from Dante's Garden:
I have gardened for years here in Satan’s Hangout and our Gen 1 is installed on the outside block wall that faces south. The Hubs constructed a custom wooden box that also houses the pool timer and an electrical outlet. We have had no problems when Satan turns up the heater.
We grow veggies year around, so we don’t winterize this controller. We have another in the high desert in the next state and that one we did bring indoors for the winter.