The Danfoss LX series electronic thermostats are specifically designed to control electric radiant heating systems for maximum comfort and minimum power consumption. The system temperature is controlled by an external or built-in sensor. Each thermostat also includes an integrated Ground Fault Circuit Interrupter (GFCI, Class A). The thermostat and the GFCI is a dual model suitable for 120/240V and has an external temperature sensor that is normally placed under the floor covering. The thermostat has two adjustable set points, one for preferred daytime operation and one for a nighttime setback temperature.