Smart sensor: reliably detects open doors, windows and vibrations, shows their status in the app and serves as a trigger for actions and scenarios in the Smart home thanks to the integrated button Break-in protection: once integrated into the Bosch Smart Home alarm system, the door/window contact triggers an alarm when it detects vibrations at the window caused by break-in attempts Warning in the alarm system: door/window sensor detects security gaps when the alarm system is activated and draws your attention to open doors and windows Save heating costs: window sensor detects open windows, enabling the smart radiator thermostats to be automatically turned down via the "Sustainable ventilation" service to save energy costs Maximum added value in the system: you need a Bosch Smart Home controller or Bosch Smart Home controller II to integrate the device into your Bosch Smart Home system Box contents: 1x door/window sensor, 1x magnet with 2 spacers, 1x CR123A battery, adhesive tape, user manual, Weight: 0.13668660244 Pounds, Manufacturer: Bosch