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All-in-One Solution

GV-CR420 is a card reader with a built-in 4 MP wide angle IP camera. The card reader recognizes identification cards and grants access accordingly. The wide angle camera captures all angles of the entrance and transmits live view to GV-ASManager and GV-System through network connection. The all-in-one solution eliminates the need of installing and maintaining a separate camera in addition to the card reader.

Card and Face Mode

In addition to granting access after a card is presented, the integration of card reader and wide angle camera allows you to enable the Card and Face Mode, where the camera reader needs to be able to both recognize the card and detect a face before access is granted.

Web Interface

Using a browser, you can watch live view and utilize functions such as motion detection, privacy mask and alert notifications through the Web interface.

Compatible GV-AS Controllers
  • GV-AS100 / 110 / 120 / ASBox / ASNet: Firmware version 1.05 or later
  • GV-AS1010 / 1110: Firmware version 1.0 or later
  • GV-AS210 / AS410 / AS810: Firmware version 1.1.0 or later
  • GV-AS2110 / 4110 / 8110: Firmware version 1.2.3 or later

  • Features
  • Specifications
  • Dimension
  • Packing
  • Accessories
  • Download
  • Ordering Info


  • Wide angle IP camera with 4 MP progressive scan CMOS
  • Stream 1 from H.264 and MJPEG; Stream 2 from H.264 and MJPEG
  • Up to 15 fps at 2048 x 1944
  • Built-in Web server for monitoring through Internet Explorer web browser
  • Built-in microphone and speaker
  • Wide Dynamic Reader (WDR)
  • Defog
  • Privacy mask to cover parts of the image that should not be viewable
  • Tampering alarm
  • Text overlay
  • 28 languages on web interface
  • ONVIF conformant


  • GV-AS Controller connection through Wiegand interface, RS-485 interface and network
  • 13.56 MHz for ISO14443A (, and )
  • Access by card plus face detection

Access Control

  • Enabling different access control modes according to the Authentication Schedule: Card only mode (default), Card and Face Mode
  • Receiving live view and capturing snapshots when card is presented

Image Sensor 1/2.5" progressive scan CMOS
Picture Elements 2048 (H) x 1944 (V)

Minimum Illumination

Color 4 Lux (1/30 sec), 2 Lux (1/5 sec)
Minimum Illumination for Face Detection 41-50 Lux
Shutter Speed Automatic, Manual (1/5 ~ 1/8000 sec)
White Balance Automatic, Manual (2800K ~ 8500K)
Optics Lens
Megapixel Yes
Day / Night function Yes (Electronic)
Lens Type Fixed
Iris Fixed Iris
Focal Length 1.05 mm
Maximum Aperture F/2.8
Mount M12, Pitch 0.5 mm
Image Format 1/2"
Operation Focus None
Zoom None
Iris Fixed
Video Compression H.264, MJPEG
Video Streaming Stream 1 and 2 from H.264 and MJPEG
Video Resolution 2048 x 1944
Frame Rate 15 fps at 2048 x 1944
* The frame rate and performance may vary depending on the number of connections and data bitrates (different scenes).
Image Setting Brightness, Contrast, Sharpness, Saturation, Gamma, White Balance, Flicker-less, Backlight Compensation, Image Orientation, Shutter Speed, Day / Night, WDR, Defog
Audio Compression G.711
Interface 10/100 Ethernet
Lens Mounting M12, Pitch 0.5 mm / 0.02 in
Connectors Power 2-pin terminal block
Ethernet Ethernet (10/100 Base-T), RJ-45 Connector
RS-485 2-pin terminal block
Wiegand 2-pin terminal block
Audio Built-in microphone and speaker
CPU 8-bit RISC microprocessor
Frequency 13.56 MHz for ISO14443A (, and )
Wiegand Interface Wiegand 26 bit, distance 30 m (98.43 ft)
RS-485 9,600 bps, connect up to 8 GeoVision readers (GV-CR420 / GV-Reader1251 / GV-SR1251 / GV-Reader1352 V2 / GV-R1352 / GV-RK1352 / GV-DFR1352)
LED Red, Green and Blue LED
Beeper Buzzer
Operating Temperature 0°C ~ 40 °C (32 °F ~ 104 °F)
Humidity 10% to 90% (no condensation)
Power Source 12V DC, 0.35A
Maximum Power Consumption 15 W
Regulatory CE, FCC, C-Tick, RoHS compliant
Dimension 134.6 x 42.5 x 65.8 mm (5.3 x 1.7 x 2.6 in)
Weight 170 g (0.374 lb)
Web Interface
Installation Management Web-based configuration
Maintenance Firmware upgrade through Web Browser or Utility
Access from Web Browser Camera live view, video recording, change video quality, bandwidth control, image snapshot, audio, picture in picture, picture and picture, motion detection, privacy mask, tampering alarm, text overlay
Language Bulgarian / Czech / Danish / Dutch / English / French / German / Greek / Hebrew / Hungarian / Italian / Indonesian / Japanese / Norwegian / Lithuanian / Persian / Polish / Portuguese / Romanian / Russian / Serbian / Simplified Chinese / Slovakian / Slovenian / Spanish / Thai / Traditional Chinese / Turkish
Network Storage GV-NVR, GV-System, GV-Recording Server
Mobile Phone support GV-Eye / GV-Eye HD for iPhone, iPod Touch and iPad, GV-Eye for Android
Live Viewing IE, GV-Multi View
CMS Server Support GV-Control Center, GV-Center V2, GV-VSM
1. To support face detection function, avoid placing the camera reader where the light source is directly behind the subject.
  • GV-CR420 x 1
  • Mounting Plate x 1
  • Standard Screw x 2
  • Plastic Screw Anchor x 2
  • Security Screw x 1
  • Torx Wrench x 1
  • DC 12V Power Adapter x 1
  • Software CD x 1
  • Quick Start Guide x 1
  • Warranty Card x 1

Name Details

User's Manual zip
Datasheet pdf

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