Schluter's DITRA-HEAT-E-RS1 is a smart thermostat used to control the DITRA-HEAT-E-HK heating cables (either 120 V or 240 V). The thermostat features a built-in Class A ground fault circuit interrupter (GFCI) and includes input terminals to connect a 10k floor temperature sensor. Two floor temperature sensors are provided with each DITRA-HEAT-E-HK heating cable box. The DITRA-HEAT-E-RS1 was designed to be mainly operated via the Schluter Smart Thermostat app. All features can be programmed and controlled using the app, and these features include remote access, time-temperature scheduling, maximum and minimum floor temperatures, maximum ambient temperature when in floor control mode, easy smart home integration, geofencing capabilities, etc.