The Dahua DHI-ARA43-W2(868) alarm repeater is a wireless repeater device that extends the communication range between the alarm hub and other accessories, and transmits messages received from the accessory to the hub.
The Dahua DHI-ARA43-W2(868) alarm repeater provides a secondary communication channel for accessories, improving the overall stability and reliability of wireless network communication.
You can use the DMSS application to manually select a path for accessories or allow the system to automatically select one.
Dahua ARD2251E-W2(868V) - Tri-Technology Motion Detector with Wireless PIR Camera
Tri-technology detector with PIR camera, combining PIR and microwave detection for accurate surveillance with a range of 15 meters and effective infrared night vision.