Household Door Window Magnetic Burglar Alarm 120db Independent Door Magnetic Alarm Sensor Alarm

Features: Applicable to doors, windows, families, shops, businesses and Easy to install, provide double-sided tape is easy to install on the door or window This product is easy to install, only the main parts were paste the chassis cover and chassis, or two windows, and alignment (stay about 6-7mm gaps) Once the thief pry the door, pry the window, attempt to steal, it will Send alarm sound. When the door/ window opens or closes, so you can discover the intruder in time. Specification: Color: White Material: Plastic Principle: Magnetic Control Power: 3x LR44 button Battery (built-in) Alarm sound: 120DB Main body size: Approx. 3.5x5.5x1.8cm/ 1.04x2.17x0.71'' Small body size: Approx. 5x1.4x1.3cm/ 1.97x0.55x0.51'' Package included: 1 x Door Security Alarm Details pictures: