Yeah, they come with their own Thermostat, I've got one and have used it through the years for various things. It's really not THAT reliable, but it works in a pinch. A couple of years ago I cooked an entire clutch of Burm eggs in mine. It's best to have it set up WAY ahead of time WITH the egg box you'll be using in it just to make sure it's working okay. They do tend to fluctuate when you first set them up.