Average Reviews:
(More customer reviews)I bought 2 of these devices to protect the front and back glass windows that are vulnerable at home. This alerts me for any break-in and gives me peace of mind. It's so sensitive that it emits a loud pitch sound even just a tap to the glass. Another benefit is that it uses only 2 AAA batteries which is very affordable, and no electrical wiring required. And it has a ON/OFF switch should you need to open the windows. I plan to order 2 more to protect 2 windows in my RV. This product is highly recommended.
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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".
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