It is important to put the tempreture senser and the wire senser on the right position. The HIF1 thermostat senses the ambient temperature. The sensor wire senses the presence of water. If the temperature is below 40F(4C) AND at least 10 inches(23.4cm) of the sensor is laying in (or on) water, then the unit will apply the power to the roof heating cable.
120V, maximum wattages 1200W. Including 6ft cold lead and grounded plug with light
In response to the changing weather conditions, HIF1 can measure both temperature and moisture to turn on the system or off.
Water resistant enclosure. Prevent ice dams and frozen drains
Automatically controls operation and energy usage of electric roof de-icing cable?Preassembled and easy to install