Sell Wireless Door Window Sensor Magnetic Switch Home Security Alarm Bell Burglar Warning Safety best price

Gives an alarm if someone opens the door or the window Secure your doors, windows, and valuables Compact design, no wiring required High sensitivity can be used to protect people against stealing Ideal entry warning for homes, apartments, dorms, offices, and more! Easily mounted to windows or doors with included mounting tape Electronic Magnetic Sensor detects entry Alarm is activated when the two pieces are separated 90 dB to 105 dB loud, instant alarm Convenient on/off switch Powered by 3 x 1.5VLR44/AG13 button cell This entry alarm installs tool-free to nearly any door or window to notify you of any unwanted entry or intruders. 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. Pick up a reliable door and window entry alarm and keep your home, shop or garage secure while you rest easy!