Dahua Wireless External Triple-Tech Detector
 
> Support anti-masking detection. 
> Support moving detection to prevent someone move or detach device. 
> Support the installation of camera modules to form PIR-Cam to implement video verification. 
> Pet immunity: up to 80 cm, 40kg. 
> Support environment temperature monitoring. 
> Supports two-way communication and frequency hopping to make communication with alarm hub stable and reliable. 
> Features cloud update. You can also remotely update the device on the mobile app. 
> Offers a dual backup system, and uses auto recovery when an update fails.