Features: * For use with Easy Heat Freeze Free cable * Unit extends cable life, saves energy, eliminates the need to unplug cables in warm weather or forgetting to plug in cables when temperatures fall * For dry locations only * Power indicator light that lights up when the thermostat is energized * Automatically turns on heating cable only when needed (35 degrees F or less) * Shuts off power when the temperature rises to 50 degrees F What"s In The Box: * Easy Heat EH38 Thermostatically Controlled Valve and Pipe Heating System