KERUI Wireless Security Burglar Door Alarm System Kit for Garage Shed House
1 Wireless PIR Motion Detector with 9V Battery. The host supports up to 30pcs wireless detectors, 8pcs remote key fobs, 4 doorbell buttons. 2 Wireless Remote Key Fobs with 23A 12V Battery. 2 Wireless Door Sensors with 23A 12V Battery.