Bunker Hill Security Door/Window Entry Alarm 94983

This entry alarm installs tool-free to nearly any door or window to notify you of any unwanted entry. A magnetic sensor switch detects motion to protect your home or office and emits a loud beeping noise to notify you of any breaches to the perimeter. Easy tool-free installation to window or door; Mounted using double-sided adhesive tape (included) Magnetic sensor switch detects entry protecting home or office Three 1.5V button cell batteries, INCLUDED 90 DP plus @ 3 ft. sound level.