Selling The Watlow Temperature Controller but am also including the electrical enclosure I used with it. (Easily removed) It is powered by 120 volts. In the box is a two pole 20 amp relay, with a 120 vac coil, also that was used to control some electrical immersion heaters. In the photo you see that the thermocouple immersion sensor is also included. User manual is included also. The stainless-steel sensor is designed for water immersion, but it can used to sense temperature in the air or embedded in concrete. CASH ONLY.