Glass Alarm Two-Pack
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Use on glass windows and sliding or patio doors
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Produces 100dB alarm when triggered
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Sensitivity adjustment helps prevent false triggers
Easy-to-install alarms alert you of intrusions through glass windows, sliding doors and patio doors. Each Glass Alarm produces a 100dB alarm when glass is tampered with or broken. High-/low-sensitivity adjustment helps prevent false triggering on windy days. Arm/disarm switch and battery-test button. Warning sign visible outside. Uses two CD2032 batteries (included).