Doorbird D21DKV, IP VIDEO DOOR STATION, RAL 4005, stainless steel, powder-coated, semi-gloss, Part# 423888128 ENS 5 Megapixel Outdoor HDCVI IR Eyeball Camera Auxiliary input detection of 3-30V

Auxiliary input detection of 3-30V DC or AC (will also detect audio output from Algo 1825 Duet Plus ringer)

The quality Greenlee 10924 90 CONDUIT SHOE 3 (10924) is for use with Rigid Conduit Benders

In a working environment the NTL600 can be used to generate loud sounds to indicate the beginning and end of each period

Metal safety loop

This highly-scalable solution is suitable for enterprise mass deployment

Doorbird D21DKV, IP VIDEO DOOR STATION, RAL 4005, stainless steel, powder-coated, semi-gloss, Part# 423888128 ENS 5 Megapixel Outdoor HDCVI IR Eyeball Camera Auxiliary input detection of 3-30VThe efficient Doorbird D21DKV 423888128, IP VIDEO DOOR STATION, RAL 4005, 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