Alarm Systems - Home Magnetic Door Window Sensor Alarm Switch Thief Burglar Prevention Security System for Hotel and House

Main Features:
● Real-time alarm when the door / window / closet / safe is open
● 120dB alarm sound, when someone opens the door and window, the alarm immediately sounds an alarm, and the response is rapid
● Small size, easy to install, and can be used for hotel
● Sticker paste, firm and not easy to fall off
● Low power consumption, you can use for a long time
● Battery: 3 x LR44 ( include )
● The shell is made of high-quality ABS material, which is stylish and durable
● Anti-theft sensor widely applied in the office, hotel, house, rental, jewelry, etc.