This is a wireless motion detector. This detector is designed based on the principle of infrared spectrum of the human body and the Doppler mobile detection technology. It is designed by special filter lens and advanced signal analysis technology. When the intruder moves within his detection range, the sensor will automatically detect and send alarm signal.The product package contains the bracket and installs the bracket on the device. Install the product on the wall of 2-2.5 meters away from the ground. When the device is in a defense state, it is detected that someone breaks in. The device indicator will flash the red light, and the device will send the message to the host.You will receive a push notification.