Advantages
- Effective alarm performance: The powerful alarm siren provides reliable audible and visual alerts through two 100 dB piezo speakers and eye-catching LED signal lights.
- Environmentally friendly power supply: Thanks to the solar cell combined with a replaceable NiMH battery pack, enough energy is stored to ensure reliable operation even at night or in cloudy weather.
- Alternative charging option: Optionally you can charge the siren via the micro USB port.
- Increased sabotage protection: A sabotage contact detects tampering or unauthorized disassembly for added security.

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.

Window and door contact
The invisible window and door contact detects open windows and can also trigger an alarm if desired.

Concealed Window and Door Contact
Monitor your windows and doors unobtrusively.

Window Handle Sensor
The window handle sensor detects whether your window is open, tilted or closed.