https://www.hkcsecurity.com/gb/en/products/smart-cameras/video-doorbell/video-doorbell-cam-dbkt
Video Doorbell (CAM-DBKT) | HKC
The HKC CAM-DBKT is a smart video doorbell designed for seamless integration with HKC Security systems and the SecureComm Cloud platform.
video doorbellcamhkc
https://www.thethingsnetwork.org/u/DBKT_Engineering
DBKT Engineering - The Things Network
DBKT Engineering updates, communities and gateways.
the thingsengineeringnetwork