Manufacturer Name: Resideo Product Number: TH115-A-120S OEM Part Number: TH115-A-120S The Resideo TH115-A-120S is a line voltage 7-day programmable thermostat designed to precisely control electric heating systems. It uses a 120V power source and has a Single Pole Double Throw (SPDT) switch action. The thermostat detects temperatures accurately using a thermistor sensor, allowin... https://www.partshnc.com/th115-a-120s-resideo-120v-7day-prog-spst