Need to control anything electrical based of temperature, this Ranco unit makes it easy. Most commonly used to make a kegerator or fermentation chamber out of a refrigerator or freezer, but can also be used to control pumps, AC units and more. Usually, these units are not wired making install fairly complicated but these are wired up and ready to be plugged into most things using standard US power.
The unit can do either heating or cooling depending on the application and that can be changed right on the digital interface.
Ranco base Model # ETC-111000-000.