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DoorBird D21DKV, Surface & Flush Mount Possible, IP Video Door Station, Display module Up to 500 Units, (Housings sold separately)

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For multi-tenant residences and buildings with up to 500 units

Stainless steel V2A, brushed
  • 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
  • Open API
    Local interface for integration with third-party systems and SIP
  • Video and audio call
    On smartphones, tablets (iOS, Android), IP and landline phones (SIP)
  • Smart Transmission¬†Mode (STM)
    Real-time audio / video communication, optimized for mobile devices via WiFi, 3G, 4G, 5G
  • Smart Home & NVR compatible
    Control4, Loxone, Crestron, Synology, AVM FRITZ!Fon, URC, QNAP, RTI, ELAN, Fibaro, Bang & Olufsen and others
  • Automatic door buzzer
    For use in medical offices and office environments
  • Free visitor history
    Store still images for free, optional video recording available
  • Individual action schedules, e.g.:
    RFID card ‚Äúabc‚ÄĚ has only access on Wednesday from 9 am until 11 am
  • Geofencing
    Automatic door and gate opening when returning home
  • Night vision
    With 12 Infrared LEDs
  • HDTV Video
    Ultra wide-angle, hemispheric lens, 180¬į
  • Light sensor
    For night vision mode
  • Microphone
    Clear voice transmission
  • Noise reduction and echo cancellation (AEC, ANR)
  • RFID reader
    Configurable remotely via App (e.g. time frame)
  • Call button
    With backlit nameplate
  • Easy connection to the network
    Connection via a network cable or bell wire via 2-Wire Ethernet PoE Converter ‚ÄúDooBird A1071‚ÄĚ (PoE, network data)
  • Two freely configurable bi-stable switching relays
    Two doors or gates can be controlled via App
    Status configurable via App: temporary or permanent circuit
  • Keypad Module
    Configurable via App
    More than 500 individual PIN codes
    Individual events (e.g. trigger a relay, HTTP(s) request)
  • Display Module
    Distance sensitivity on/off
    Individually configurable, e.g.: display of the resident directory, welcome

Key Pad Module:

  • 16 keys, illuminated, configurable via App, e.g. Individual PIN codes Individual events (e.g. switch a relay, push notification, SIP call [audio/ video], HTTP(s) notification)
  • Individual schedules
  • Built In RFID and lock strike capabilities for access control
  • Requires hard line connection either ethernet CAT5/6 or using 2 wires with Doorbird POE Converter Kit (A1071)
  • Professional Integrator Installation Recommended

System requirements:

  • Mobile device: Newest iOS on iPhone/iPad, newest Android on Smartphone/Tablet
  • Internet: High-Speed Landline Broadband Internet connection, DSL, cable or fiber optic, no socks or proxy server
  • Network: Ethernet Network, with DHCP
 Front panel  Brushed stainless steel, 3 mm (0.12 in)
Mounting housing(backbox) Stainless steel
Mounting type  Flush-mounted, surface-mounting
housing sold separately
Power supply 15 V DC or Power over Ethernet
(PoE 802.3af Mode-A)
Display Module 3.5“ LCD (no touch function), illuminated
Keypad Module
  • 16 keys, illuminated, configurable via App, e.g.
  • Individual PIN codes
  • Individual events (e.g. switch a relay, push notification, SIP call [audio/video], HTTP(s) notification)
  • Individual schedules
  • RJ45, for LAN/PoE
  • Bi-stable latching relay #1, max. 1-24 V DC/V AC, 1 Ampere, e.g. for electric door opener
  • Bi-stable latching relay #2, max. 1-24 V DC/V AC, 1 Ampere, e.g. for electric door opener
  • External input for external door opener button (potential-free)
  • 15 V DC input (+, -)
Weather-proof Yes, IP65
Approvals CE, IC, FCC, RoHS, IP65, IK08
Scope of delivery  1 x Main Electrical Unit
1 x Front panel
1 x Mounting housing (backbox)
1 x Power supply unit (mains adaptor)
with four country-specific adaptors
(110 - 240 V AC to 15 V DC)
1 x RFID key fob
1x Screwdriver
1x Quickstart guide with
Digital Passport
1x Installation manual
1x Small parts
Camera¬† HDTV 720p, dynamic (VGA ‚Äď HDTV)
  • High-end ultra wide-angle hemispheric
  • lens 180¬į horizontal, 90¬į vertical, straightened, IR-capable
  • Night-vision : Yes, light sensor, automatic IR-cut filter, 12 IR-LEDs (850 nm)
Audio components Speaker and microphone, echo and
noise cancellation (AEC, ANR)
Audio streaming Two-way, full duplex
Ethernet RJ45 jack, PoE 802.3af Mode-A

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