Door Window Wireless Magnetic Burglar Alarm Senso System Security Device (wholesale Price)
100% and high quality.
Super loud 90 dB alarm.
Convenience in installation--just peel and stick.
Super environmental suitability and stability.
Dust proof and insect prevention.
Easily mounted by adhesive. Type to window or door. Ideal entry warning for homes, apartments, mobile homes, dorms, offices, hotel rooms, garages, and more!
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.
When the distance between two door magnets is over 2cm,it will issued a treble warning sound