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Network Cameras
PTZ Dome Cameras


VT231-A2 series HD IR IP dome camera provides high quality video with the resolution up to 1920×1080@60fps, adopts H.265/H.264/M-JPEG compression formats, and boasts of excellent resolution and color reproduction ability to ensure richer and more accurate details to be acquired and also guarantee the accuracy of intelligent analysis in a more effective way.

This product adopts large power LED infrared lamps, infrared wave length 850nm, long night vision distance up to 200m, strong illumination. The IR lamps can turn on or off automatically based on environmental lighting conditions or can be adjusted manually. The IR illumination allows flexible adjustment so as to reduce IR lamp calorific value and extend its service life.

User-friendly GUI interface design allows users to perform dome PTZ control easily via network and to configure detailed camera parameters settings. At Web interface users can perform dome camera settings and operations by using a mouse which is more convenient than the traditional keyboard control. It also supports area zoom and image PTZ function.

VT231-A2 series dome cameras also feature general dome functions such as preset, pattern, autopan, autoscan, time tour and normal tour.


  • Built-in 30X HD integrated camera module
  • 1/1.9” Large area progressive scanning CMOS sensor
  • ICR infrared filter type automatic switch to realize true day/night surveillance
  • Starlight-level ultra-low illumination
  • Supports multi-frame composite pattern wide dynamic and the maximum dynamic range is 120dB
  • Inbuilt efficient infrared lamps, wave length 850nm, ensure stable long-term use and reduce maintenance cost
  • Night vision distance up to 200 meters
  • The ways of turning on the infrared lamps can be flexible to meet diversified surveillance environment demands
  • The infrared power is adjusted automatically based on dome drive zooming or manually to optimize the night vision fill-in light effects
  • HD network video output: 1920×1080@60fps
  • Features smart functions to achieve border protection (wire cross, intrusion)
  • Supports intelligent tracking
  • H.265+M-JPEG or H.264+M-JPEG video encoding, three streams
  • Supports dual SD card
  • Supports alarm recording and alarm snapshots
  • Bi-directional audio, G.711-A/G.711-U/G.726/AAC standard optional
  • Two alarm inputs and one alarm output
  • Supports motion detection, 4 detecting areas dividable
  • Supports Region of Interest (ROI), 8 regions dividable
  • Allows multiple users to perform live access and parameters settings via Web Server
  • Supports preset, autopan, pattern, autoscan, time tour, normal tour, power-on return, etc.
  • Supports ONVIF Profile S/G & T standard
  • Standard SDK, easy to integrate with other digital system
  • Supports RS485 control and analog video output for easy debugging
  • IP67 protection rate, inbuilt a heater and air circulation system to avoid icing
  • IK10
  • Supports remote network upgrade



HD Megapixel IR IP PTZ Dome Camera, 2MP, 30X, 1/1.9″ CMOS, Day/night, H.265/H.264/M-JPEG, With audio alarm, Outdoor, Bracket mount, PoE/24VDC/24VAC


Wall Mount, bayonet, 10 inches


Corner Mount, bayonet, 10 inches


Pole-side Mount, bayonet, 10 inches

Power Supply

AC to DC Power Supply, Plug-In, 230VAC, Output 24VDC, 3A


AC to AC Power Supply, Plug-In, 230VAC, Output 24VAC, 3A


Smart POE Injector, 100VAC-240VAC input, 75W output


Technical Specifications


Lens (Visible)
Image Sensor                        1/1.9″ progressive scanning CMOS
Optical Zoom                         30X
Digital Zoom                          12X
Focal Length                          f=6~180mm
Iris                                           F1.6~F4.8
Focus                                      Auto/Manual
FOV(H/V/D)                        H: 2°~59°; V: 1°~34°; D: 2°~66°
Lens Mount                           

Lens (Thermal)
Imager Type                         
Lens Type                             
Spectral Band                       
Pixel Size                               
Focal Length                         

Camera Resolution (Visible Lens)              2MP
Camera Resolution (Thermal Lens)             
Max. Coding Capacity (Visible Lens)          Major stream: H.264/H.265-60fps@1920×1080
Minor stream: H.264/H.265-30fps@640×480
Third stream: M-JPEG -5fps@1920×1080
Max. Coding Capacity (Thermal Lens)       
Data Rate                                                            VBR/CBR
Major stream: 256kbps~10240kbps
Video Compression                                           H.265 /H.264/M-JPEG independent coding
Multi-Streaming                                                Three-stream independent output
Video Rotation                                                    Video can be rotated by 90°, 180°

Audio Compression                                            G.711-A/ G.711-U/ G.726/ AAC
Sample Rate                                                         8KHz (for G.711-A/G.711-U/G.726), 16KHz,
32KHz, 44.1KHz or 48KHz (for AAC)
Audio Interface                                                    1 input, linear level, impedance: 1kΩ
1 output, linear level, impedance: 600Ω
Two-way Audio                                                    Available
Mic & Speaker                                                         

Shutter                                                                   Auto/Manual (1/1~ 1/32000s)
WDR                                                                      Up to 120dB
Exposure                                                              Auto/Manual/Shutter
Sensitivity                                                           Color mode: 0.001 lux @ F1.6 (AGC ON);
B/W mode: 0.0001 lux @ F1.6 (AGC ON);
0 lux (IR ON)
White Balance                                                      Auto/Manual/Outdoor
Video Adjustment                                              Brightness, contrast, saturation, chroma, sharpness
Noise Reduction                                                  3D
S/N Ratio                                                             >62dB
Defog                                                                     Available
EIS                                                                         Available
Mirror                                                                   Horizontal, Vertical
Corridor Mode                                                     
Day/Night Switching                                         ICR
AGC                                                                       Available
BLC                                                                       Available
HLC                                                                      Available
Privacy Mask                                                      Up to 4 definable zones
ROI                                                                       Up to 8 definable zones
OSD                                                                      Supported

Pan/Tilt Functions
Preset                                                                     1024
Pattern                                                                   12
Autopan                                                                 12
Normal Tour                                                        16 groups (each tour can link to 14 actions, optional with Presets 1~32, Patterns  1~4 and Autopans 1~4)
Home Return                                                        Available
Timing Tour                                                         Available
Autoscan                                                               Available
Area Zoom                                                           Available

IR Illumination
Smart-IR                                                             Available
Wave Length                                                      850nm
Night Vision Distance                                      200m

Temperature Measurement
Measurement Distance                   
Measurement Range                       

Smart Analytics
Video Analytics                           Motion detection – Up to 4 detection areas Smart Video Analysis – Wire cross, area intrusion  Intelligent Tracking – Rule-triggered tracking and manual-triggered tracking

Storage Slots                               Supports dual cards
Built-in Storage                          Up to 512GB
NAS Storage                               
Local PC Recording                  Available

Alarm Ports                               2 alarm inputs, 1 on/off output
Alarm Input                              I/O input, motion detection, intelligent analysis, SD card removal, network disconnection, heartbeat loss
Alarm Association                   I/O output, email, FTP picture uploading, audio, SD card snapshot, SD card recording

System Functions
Operating System                   Win 7 or above versions
Browser                                    IE8 or above versions
Access Protocol                       ONVIF Profile S/G/T, CGI 2.7
Multiple Access                      Up to 5-ch simultaneous access
Web Server                            Available
Remote Upgrade                  Available
Password Protection           Available
RS485 Port                                     Supports, 1*RS485
Analog Video Output                   Supports, 1*BNC port
Maximum Number of Users      32, with 3 types of users available:
administrator, normal user, and operator

Network Interface                      1*RJ45 10/100M self-adaptive Ethernet port
Network Protocols                      IPv6, TCP, UDP, IGMP, DHCP, FTP, SNMP, SMTP, NTP, RTP, RTSP, RTCP, SFTP, HTTP, HTTPS, TSL, SSL, QoS, PPPoE, DNS, DDNS, ARP, ICMP, UPnP
IP Address Filtering                   Support blacklist and whitelist filtering
Network Delay                            <160ms

Anti-Static                                   Air discharge 14KV, Contact protection 8KV
Surge Protection                        ±8KV
Operating Temperature           -49°F ~ 158°F (-45°C ~ 70°C) (outdoor)
-4°F ~ 140°F (-20°C ~ 60°C) (PoE+, outdoor)
Storage Temperature                -4°F~140°F (-20°C~60°C)
Operating Humidity                 ≤95% RH
Environmental Rating              IP67
Impact Resistance                     IK10

Manual Speed                           Pan: 0.01° ~1000°/s; Tilt: 0.01° ~ 300°/s
Preset Speed                              Up to 400°/s
Rotation Angle                          Pan: 360°; Tilt: -5° ~ 90° (auto-flip)
Preset Accuracy                        <±0.1°
Electric Motor                         Stepping motor

Power Supply                          PoE+ (IEEE802.3at type2 Class4)/ 24VAC/ 24VDC
Power Consumption              <17W (idle state);
<55W (Heater on, IR lamp manually adjusted to maximum); <50W (PoE+)

Product Dimension (L×W×H) or (H x D)            14.6″ × Ф9.04″ (370mm × Ф229.6mm)
Package Dimension (L x W x H)                             19.09″ × 11.02″ × 11.81″
(485mm × 280mm × 300mm)
Unit Weight                                                                12.79 lbs (5.8kg)
Shipping Weight                                                        16.76 lbs (7.6kg)

Product Certifications                                            CE, FCC, RoHS, IP67, IK10, UL