Featuring a dual sensitivity switch, the Glass Guard Alarm sounds if the glass is broken or with even modest vibration in the high setting.
"Buy GLASS GUARD VIBRATION ALARM" Overview
Vibration-sensitive window alarm easily attaches to any window or sliding patio doors and is set off by vibrations. Alarm deters intruder, then resets itself.Leaves you and your home well-protected. Choose high or low sensitivity,adjustable volume control. Requires four AA batteries, not included. Plastic, 21/2 x 2 1/4".You will not be disappointed with GLASS GUARD VIBRATION ALARM
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