Báo động không dây cảm ứng từ tính đóng mở cửa sổ

Specifications: Magnetic sensor, entry alarm, concise warning system. An ideal guardian against the unwanted intruder whether you are in or out. Easily mounted by adhesive tape, just peel and stick to window, door, cupboard or toolboxes. Electronic magnetic sensor switch detects any entry protecting your home, office, apartments, hotel rooms, garages, and more whether you are in or out. Portable enough to take with on business trips and vacations, keep yourself and your property safe and security. Test the setup by switching on the system and see whether the alarm can be triggered by opening the door or window. Type: Alarm Color: White Material: Plastic, Magnetic Features: Magnetic Sensor, Entry Alarm, Warning System, Easy to Use Size: 4.1cm x 1.7cm x 0.04cm/1.61" x 0.67" x 0.02" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Magnetic Sensor (3 LR44 Batteries Inside) 1 x Magnetic Stick #Magneticalarmdoorsensor #Securityentryalarm #Dooralarm #Door #Home&Living #Home&Kitchen #Home #Wireless #Doorbellalarm #Doorstopalarm