Burglar Window Alarm

Glass Guard Window Alarm The Glass Guard Window Alarm can be set to high or low sensitivity. Supplied with batteries and strong adhesive tape. Shock alert for doors or windows Easy installation. No wiring needed Adjustable Hi/Low sensitivity Built-in 101dB high output siren Easily mounted on door/window by adhesive tape (included) Instant alarm detects any vibration (when the glass is hit, knocked, or cut by anyone, the units siren will be triggered for 10-20 seconds)