NEDIS ALRMGBD20WT Slim Glass Break Detector Alarm For Doors / Windows Built-In S

Break sensor for doors / windows with built-in 85dB alarm.

The ultra-thin glass break detector has a built-in window / door alarm, which will activate when the window or door glass is broken or when the door / window is opened.

The switches on the side of the alarm allow you to turn it on / off at any time and adjust the detection sensitivity. The sensitivity of the sensor can be adjusted so that it is not activated by the normal opening of a door or window

Its slim profile makes it ideal for window or door mounting.

The alarm requires 2 CR2032 batteries (included) which have an average life of one year. The alarm will let you know when the batteries are almost empty, and you can press the "Battery Test" button at any time to check the status of your batteries.

No tools are required to install the alarm: it has magnetic sensors and is equipped with double-sided tape (included). Place the alarm on the door or window glass and attach the magnetic sensors to the door or frame and you're done.