Defender Window Alert Vibration Alarm - Smashed Glass Alarm 110dB Siren - Window Alarm Vibration Shock Glass Siren - Theft Deterrent Alarm Warning Chime With Sticker - Detect Forced Entry (2 x Pack)

Highly reliable alarm for all types of glass window or door panels, including double glazing.

Shock sensor technology detects forced entries & attempted smashing. Adjustable sensitivity.

Powerful 110dBs siren deters thieves and attracts attention.

Bright red warning sticker for additional visual deterrent.

Adhesive pad for easy installation with simple on/off switch operation. Batteries included.