4 GHz and 5 GHz
Catalog# 52079257
Active Noise Canceling for crystal clear audio in noisy environments
Convenient Sequential Footage Markings For Usage Tracking
Available in three diameter sizes (2″
Doorbird D21DKH, IP VIDEO DOOR STATION, RAL 7023, stainless steel, powder-coated, semi-gloss, Part# 423888852 message flasher 4 GHz and 5 GHzThe high performance Doorbird D21DKH 423888852, IP VIDEO DOOR STATION, RAL 7023, stainless steel, powder coated, semi gloss is for multi tenant residences and buildings with up to 500 units. Features: Surface and flush mount possible, housings sold separately LAN connection (PoE capable) 2 way audio Ultra wide angle lens, 720p, night vision, 12 IR LEDs 4D motion sensor, RFID reader Keypad, display module 2 freely configurable bistable switching relays