Doorbird D21DKV, IP VIDEO DOOR STATION, RAL 7006, stainless steel, powder-coated, semi-gloss, Part# 423888289 SAE-28NMK-CTA Supports SIP-T41S/T42S/T46S/T48S/T53/T53W/T54W/T57W/T58A/VP59

Supports SIP-T41S/T42S/T46S/T48S/T53/T53W/T54W/T57W/T58A/VP59

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Includes Answering Machine Power Backup Talking Caller Id Talking Keypad And Phonebook 9 Speed Dials 250number Call Block Accessories And Expandable To 6 Handsets

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Doorbird D21DKV, IP VIDEO DOOR STATION, RAL 7006, stainless steel, powder-coated, semi-gloss, Part# 423888289 SAE-28NMK-CTA Supports SIP-T41S/T42S/T46S/T48S/T53/T53W/T54W/T57W/T58A/VP59The advanced Doorbird D21DKV 423888289, IP VIDEO DOOR STATION, RAL 7006, 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