Temperature Sensor Switch
I'm looking for a unit that works like a timer to turn a light on but instead uses temperature. I want it to put a fan to come on when the temperature reaches a set temp.
I heard of people also using them in their house when they are away for the winter. You plug a lamp into this temp. sensor unit which, in turn, is plugged into an outlet. If the furnace quits and the temp drops, it turns a light on to alert neighbors that there is a problem.
Any idea who makes and where I can buy???