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In a working environment the NTL600 can be used to generate loud sounds to indicate the beginning and end of each period
Auxiliary input detection of 3-30V DC or AC (will also detect audio output from Algo 1825 Duet Plus ringer)
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Doorbird D21DKV, IP VIDEO DOOR STATION, RAL 4005, stainless steel, powder-coated, semi-gloss, Part# 423888128 ENS 5 Megapixel Outdoor HDCVI IR Eyeball Camera 1-1/2 Inch minThe 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
