Wireless Thermostatic Head by Honeywell is designed to control a heating element communicating at a frequency of 868 MHz. The head is compatible with the Evohome smart heating system. A major advantage of the head is the backlit, position-adjustable display. The choice of position improves readability. To illuminate the display, simply press a button or turn the head.

To set the temperature, you can use the connected thermostat or simply manually turn the head. This allows for temperature changes at any time. Additionally, the head is equipped with a "Window" function, which detects when a window is opened in the room. It then automatically closes the radiator valve and shuts off the heating water supply to prevent unnecessary heating of the ventilated room and save on energy costs. The "Window" function operates based on a sudden drop in temperature due to ventilation; after the window is closed and the temperature rises again, the head reopens the valve and heats the room to the appropriate temperature. External window contacts HCA30 can be purchased for the head, which accelerates the head's response to an open window. Another useful feature is frost protection, where the head automatically turns on the heat supply when the room temperature drops to 5°C and heats the room until at least 6°C is reached.

Control and Display Elements

1. icon indicating manual temperature adjustment
2. locked control
3. battery status
4. temperature display / parameter information
5. text display in nine characters
6. information button
7. dial for manual adjustment
8. radio signal strength
9. indication, radio communication
10. error in radio communication