Install this alarm system to any door or window.
Door Window Alarm 2 Pack Noopel Home Security Wireless Magnetic Sensor Burglar Anti-Theft 120DBâ€¦.
When a monitored door is opened the transmitter sends a signal to the receiver/
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When a burglar picks a lock or climbs through an open window, door and window sensors sound the alarmâ€”doing everything from emitting a loud siren to .