DAHUA IP Video Door Phone KitIP...
Wireless double beam infrared detector, barrier-type transmitter / receiver. It can detect any intrusion that occurs between the barrier, sending an alert to the panel that will trigger the alarm.
PIR Motion Detector Pet Immune up to 20kgFreq. 433 Mhz
Compatible with CHUANGO G5, A11, B11 andWith all the alarms Unifore and Wolf-Guard