Tecmark - Hot Tub Solid State Thermostat, 120V, 1A, 48in Cable
Tecmark 120V TDI, 1 amp, Solid State Thermostat with dial, two mounting screw holes, and a 48"" cable with 5/16"" capillary bulb, as the temperature sensor. Knob not included. 4 terminals on reverse side, Line-In, Neutral, Neutral, Line-Out. Potentiometer is used to operate a pilot duty spa or hot tub heater. 120V, 1.0A, electronic thermostat is wired before relays to turn heater on/off.