The wireless thermostatic head from the Honeywell brand is designed to control the heating element communicating on a frequency of 868 MHz . The head is compatible with the Evohome smart heating system . A big advantage of the head is the backlit, position-adjustable display . Position selection improves readability. To light up the display, just press the button or turn the head.

To set the temperature, you can use a connected thermostat or simply turn the head manually. A change in temperature is thus possible at any time. In addition, the head is equipped with the "Window" function , so it recognizes when a window is opened in the room. It then closes the radiator valve itself and turns off the heating water supply so that the ventilated room does not heat up unnecessarily and energy costs are saved . The "Window" function works on the basis of a sudden drop in temperature due to ventilation, after the window is closed and the head temperature rises again, the valve opens again and heats the room to the appropriate temperature. It is possible to purchase external HCA30 window contacts for the head, which accelerates the response of the head to an open window. Another useful function is protection against frost , when the head automatically switches on the heat supply when the room temperature drops to 5 °C and heats the room until at least 6 °C is reached.