Easy Heat EH-38 Freeze Thermostatically Controlled Valve and Pipe Heating SystemThermostatically controlled pipe heating system For use with Easy Heat Freeze Free cable For dry locations only Power indicator light that lights up when the thermostat is energized Shuts off power when the temperature rises to 50 degree F 10 degree C Automatically turns on heating cable only when needed (35 or less). Unit extends cable life, saves energy, eliminates the need to unplug cables in warm weather or forgetting to plug in cables when