1High stability wireless passive infrared detector, strong anti-jamming ability and shock protection performance. 2Containing microprocessor, can not be used alone with the host. 3The signal analysis and processing technology is used to provide high detection and anti-false alarm performance. 4When an intruder passes through the detection area, the detector will automatically detect human activities in the area. In case of dynamic movement, it sends an alarm signal to the control host. 5Suitable for the safety precautions of family residential areas, villas, factory buildings, shopping malls, warehouses, office buildings and other places.