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8 to 12mm auto iris varifocal lens indicating a wider zoom range to fit more applications
10 programmable memory keys for frequently called numbers or feature access codes
any of 16 resident TTL inputs
Ultra-Soft Leatherette Ear Cushion
Designed to fit all racks
Doorbird D21DKH, IP VIDEO DOOR STATION, RAL 7004, stainless steel, powder-coated, semi-gloss, Part# 423888814 Telephone Accessories 8 to 12mm auto irisThe durable Doorbird D21DKH 423888814, IP VIDEO DOOR STATION, RAL 7004, 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
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