Advantages
- Activate alarms: As soon as burglars try to open the window from the outside, the window handle sensor sends a signal directly to your alarm system.
- Control temperature: Do you ventilate in winter? Then the sensor automatically switches off the heating while the window is open.
- Easy installation: The sensor fits under all common window handles and is suitable for both left and right opening directions.
- Unobtrusive: The sensor is discreet due to its compact design and requires no wiring.
- Suitable addition for your shading: Expand the functions in your Smart Home by connecting your roller shutter and blind control with the window handle sensor.

Downloads
Accessories

Homematic IP App
The app is the intuitive control center of your smart home.

Access Point
With the Homematic IP access point you can control your smart home from anywhere.

Radiator thermostat
Connect your heating to your smart home and automatically control the temperature in your home.

Wall thermostat with humidity sensor
The wall thermostat measures the temperature and humidity when placed anywhere in the room.

Radiator Thermostat - Evo
Bring together intelligent heating and a stylish, excellent design.

Alarm Siren - indoor
The Homematic IP indoor alarm siren effectively deters burglars.

Alarm Siren - outdoor
A reliable audible and visual alarm system for your smart home.