Sinum White Wired Room Thermostat R-S3 Tech Controllers Purpose: The R-S3 wired thermostat features a clear display with touch buttons and a glass front. It also has an air humidity sensor and can measure floor temperature (using an NTC floor sensor). The thermostat sends the current temperature to the EH-01 control unit, which compares the set temperature with the current temperature and then controls the heating device, radiator heads, or thermostatic valves to turn the heating on or off. Too cold or too hot? With the heating/cooling mode, you can always have the perfect temperature, any time of year! After adding and programming the thermostat in the EH-01 control unit, you can remotely control the temperature, set schedules, and execute actions and scenes dependent on the room temperature. See how simple it is and finally feel comfortable in your home! Features: room temperature measurement and regulation; air humidity measurement; LCD display with temporary backlight; floor temperature measurement (using an NTC floor sensor); touch keys; TECH SBUS communication; . . ; ; .