125DB Loud Window Alarm: When NOOPEL glass break alarms detect vibration or shock waves associated with glass shattering, they sound an 125db alarm continuously 30 seconds.
Ultra Slim and Low Battery Indicator: Includes FIVE glass break alarms, each dimension Size: 2.9" x 2.9" x 0.4”, each with 2 adjustable settings ON/OFF, each with 3 X LR44 Batteries included. Built-in low battery indicator to check battery life easily.
For Your Protection: This optimal window alarm is designed to prevent unauthorized access by intruders and notify homeowners of any breaches. It's also an excellent glass break detector suitable for your home, workplace, apartment, garage, dormitory, recreational vehicle, hotel, and more.
Adjustable Sensitivity Settings: With roller vibration sensitivity adjustment design, you can set sensitivity level easily to prevent false alarms
Easy Installation: By simple peel and stick as includes double sided tape! No wiring needed! No screws needed!