Buy 4 Free Shipping—Home Door Window Entry Burglar Alarm Signal Security alarm Switch Guardian
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Easily mounted by adhesive tape to window or door.
Magnetic sensor switch detects entry protecting your home or office whether you are in or out.
Warning door/window sticker is supplied free in package.Operating by 3 pcs.1.5VLR44 button cell.（without button cell）
Package includes: 1 x Magnetic Sensor (without button cell)
100% Brand New and High Quality
Magnetic sensor switch detects entry
Ideal guardian against the unwanted intruder whether you are in or out, keep yourself and your property safe and secure.
Easily attach the main sensor on the door/window and attach the stick adjacent to the main sensor on the door/window frame with the adhesive tape (included).
Handy ON/OFF switch: in the state of "ON", the sensor will emit the alarm signal as long as someone opens your door or window
Super loud 90 dB alarm
Powered by 3*1.5V LR44 button cell(without button cell)
Size: 2.5 x 1.3 x 0.8 inch
We truly believe we make some of the most innovative products in the world, and we want to make sure we back that up with a risk-free ironclad 30 day guarantee. If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase.