Chuông Báo Động Gắn Cửa Không Dây Điều Khiển Từ Xa

Alarm Wireless Remote Control Window Sensor Security Door Alarm SensorFeature 1.100% brand new and high quality 2.Suitable for home 3.9V battery 4.The double sided tape provided is easy to install on a door or window Simply attach the main and auxiliary parts to the door and door frame or the two windows and the auxiliary machine arrow is aligned with the side mark of the main unit (leave a gap of about 5mm) Once the thief slams the door slams the window attempts to steal the alarm can sound an alarm greater than 120 decibels When you want to open the door or window you can control it by remote control 1.material：ABS 2.color：As the pictures shown 3.size：as the picture shows Package include:1pc Note: Please allow minor error due to manual measurement. The colors may be a little difference for the different monitor display.