Brewers Edge (r) Refrigerator thermostat (digital). Plug your refrigerator into this unit and plug the unit into your wall outlet. Then run the capilarity tube with bulb into your fridge. Set the desired temp and the unit will override the fridge and hold your desired temp.

Single stage temperature controller with display heat/cool range -30 to 212 deg F. Prewired with two power cords.