The RX1200 controller is designed to use in conjunction with Danfoss roof and gutter de-icing cable for roof, gutter and snow melting applications. The RX1200 sense both moisture and temperature conditions in the gutter or downspouts and turns the roof de-icing cable on and off based upon these readings. By combining the moisture and temperature readings, the controller is able to save up to 75% on energy consumption compared to a controller which only measure temperature. Danfoss RX products–cables and controls are designed to produce an effective and constant solution to protect your roof from ice dam or related hazards. The quality engineered RX heating cables provide a safe, flexible and economical solution of you snow and ice protection needs. The RX1200 is rated at a maximum of 10.2 Amps at 120 Volts,which means the maximum cable wattage the can be connected to the controller is 1225 Watts. Only one roof and gutter de-icing cable can be connected to the RX1200 by a grounded plug.