Johnson Controls analog temperature controller. Temp ranges are from -30 degrees to 100 degrees. The controller is in good working condition. $35 + $13 priority mail shipping (I could fit this into a smaller box, but I want to make sure there's some padding around it).
Also, I have 2 ball lock corny kegs without lids. Does anyone have any spare lids with pressure relief valves that they're willing to sell?