Door Window Alarm | Battery powered | 2x CR2032 | 85 dB| White

This ultra-thin glass breaker detector has a built-in window/door alarm that activates when the glass in the window or door is broken or when the door or window is opened. With the contacts on the side of the alarm, you can turn it on and off as needed and adjust the sensitivity of the detector. The thin profile makes it perfect for mounting on a window or door. The alarm requires 2 x CR2032 batteries (included) which have an average life of one year. The alarm indicates when the batteries are almost empty and you can press the "battery test" button at any time to check the battery status. No tools are needed to mount the alarm: it has magnetic sensors and double-sided tape (supplied). Attach the alarm to the glass in the door or window and place the magnetic sensor on the door or frame and you're done.