Nedis ALRMGB20WT glass break detector Wireless

This ultra-thin glass break detector is designed to activate a burglar alarm when the window or door glass is broken.
The simple switches on the sides of the device allow it to be switched off or to change its detection sensitivity.
Its thin profile is ideal 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 will indicate when the batteries are almost empty and you can press the "battery test" button at any time to check your batteries' status.
The alarm unit is fitted with double-sided tape (included): simply stick the alarm on the glass of the door or the window and you are done.