DS-2CD2123G2-I

Manufacturer reference

Manufacturer details describe the cited version. Confirm the exact unit and intended system.

Camera

Image Sensor

1/2.8" Progressive Scan CMOS

Min. Illumination

Color: 0.005 Lux @ (F1.6, AGC ON), 0 Lux with IR on

Shutter Speed

1/3 s to 1/100,000 s

Slow Shutter

Yes

Wide Dynamic Range

120 dB

Day & Night

ICR Cut

Angle Adjustment

Pan: 0° to 355°, tilt: 0° to 75°, rotate: 0° to 355°

Lens

Lens Type & FOV

2.8 mm, horizontal FOV 107°, vertical FOV 57°, diagonal FOV 127° 4 mm, horizontal FOV 87°, vertical FOV 46°, diagonal FOV 104°

Aperture

F1.6

Lens Mount

M12

DORI

DORI

2.8 mm: D: 67 m O: 26 m R: 13 m I: 6 m 4 mm: D: 80 m O: 31 m R: 16 m I: 8 m

Illuminator

IR Range

Up to 30 m

Wavelength

850 nm

Video

Max. Resolution

1920 × 1080

Main Stream

50Hz: 25 fps (1920 × 1080, 1280 × 720) 60Hz: 30 fps (1920 × 1080, 1280 × 720)

Sub Stream

50Hz: 25 fps (640 × 480, 640 × 360) 60Hz: 30 fps (640 × 480, 640 × 360)

Third Stream

50Hz: 25 fps (1280 × 720, 640 × 480, 640 × 360) 60Hz: 30 fps (1280 × 720, 640 × 480, 640 × 360)

Video Compression

Main stream: H.265/H.264/H.264+/H.265+ Sub-stream: H.265/H.264/MJPEG Third stream: H.265/H.264

Video Bit Rate

32 Kbps to 8 Mbps

H.264 Type

Baseline Profile/Main Profile/High Profile

H.265 Type

Main Profile

H.264+

Main Stream supports

H.265+

Main Stream supports

Bit Rate Control

CBR/VBR

Scalable Video Coding (SVC)

Yes

Region of Interest (ROI)

1 fixed region for main stream and sub-stream

Network

Simultaneous Live View

Up to 6 channels

API

Open Network Video Interface (Profile S, Profile G), ISAPI, SDK

Protocols

TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, NTP, UPnP, SMTP, IGMP, 802.1X, QoS, IPv6, UDP, Bonjour, SSL/TLS, PPPoE

User/Host

Up to 32 users. 3 user levels: administrator, operator and user

Security

Password protection, complicated password, HTTPS encryption, IP address filter, Security Audit Log, basic and digest authentication for HTTP/HTTPS, TLS 1.1/1.2, WSSE and digest authentication for Open Network Video Interface

Network Storage

MicroSD/SDHC/SDXC card (256 GB) local storage, and NAS(NFS, SMB/CIFS), auto network replenishment (ANR)

Client

iVMS-4200, Hik-Connect, Hik-Central

Web Browser

Plug-in required live view: IE 10, IE 11 Plug-in free live view : Chrome 57.0+, Firefox 52.0+ Local service: Chrome 57.0+, Firefox 52.0+

Image

Day/Night Switch

Day, Night, Auto, Schedule

Image Enhancement

BLC, HLC, 3D DNR

Image Parameters Switch

Yes

Image Settings

Rotate, mirror, privacy mask, saturation, brightness, contrast, sharpness, gain, white balance adjustable by client software or web browser

Interface

On-board Storage

Built-in micro SD, up to 256 GB

Hardware Reset

Yes

Communication Interface

1 RJ45 10M/100M self-adaptive Ethernet port

Event

Basic Event

Motion detection (human and vehicle), video tampering alarm, exception

Smart Event

Line crossing detection, intrusion detection

Face Detection

Yes

General

Linkage Method

Upload to FTP/memory card/NAS, notify surveillance center, trigger record, trigger capture, Email

Web Client Language

33 languages English, Russian, Estonian, Bulgarian, Hungarian, Greek, German, Italian, Czech, Slovak, French, Polish, Dutch, Portuguese, Spanish, Romanian, Danish, Swedish, Norwegian, Finnish, Croatian, Slovenian, Serbian, Turkish, Korean, Traditional Chinese, Thai, Vietnamese, Japanese, Latvian, Lithuanian, Portuguese (Brazil), Ukrainian

General Function

Anti-flicker, heartbeat, password reset via e-mail, pixel counter

Storage Conditions

-30 °C to 60 °C (-22 °F to 140 °F). Humidity 95% or less (non-condensing)

Startup and Operating Conditions

-30 °C to 60 °C (-22 °F to 140 °F). Humidity 95% or less (non-condensing)

Power Supply

12 VDC ± 25%, reverse polarity protection PoE: 802.3af, Class 3

Power Consumption and Current

12 VDC, 0.4 A, max. 5 W PoE (802.3af, 36 V to 57 V), 0.2 A to 0.15 A, max. 6.5 W

Power Interface

Ø5.5 mm coaxial power plug

Material

Aluminum alloy body Bubble: plastic

Screw Material

SUS304

Camera Dimension

Ø110.8 × 84.7 mm (Ø4.4″ × 3.3″)

Package Dimension

134 × 134 × 108 mm (5.3″ × 5.3″ × 4.3″)

Camera Weight

Approx. 530 g (1.2 lb.)

With Package Weight

Approx. 720 g (1.6 lb.)

Approval

Manufacturer-listed emc

FCC (47 CFR Part 15, Subpart B); CE-EMC (EN 55032: 2015, EN 61000-3-2: 2014, EN 61000-3-3: 2013, EN 50130-4: 2011 +A1: 2014); RCM (AS/NZS CISPR 32: 2015); IC (ICES-003: Issue 6, 2016); KC (KN 32: 2015, KN 35: 2015)

Manufacturer-listed safety

UL (UL 60950-1); CB (IEC 60950-1:2005 + Am 1:2009 + Am 2:2013); CE-LVD (EN 60950-1:2005 + Am 1:2009 + Am 2:2013); BIS (IS 13252(Part 1):2010+A1:2013+A2:2015)

Manufacturer-listed environment

CE-RoHS (2011/65/EU); WEEE (2012/19/EU); Reach (Regulation (EC) No 1907/2006)

Protection

IP67 (IEC 60529-2013), IK10 (IEC 62262: 2002)

Selection notes

• The documented specifications apply to the cited manufacturer version. Confirm the supplied hardware, firmware and accessory configuration.
• 5.102_20210204.pdf. Specifications are attributed to the linked dated manufacturer document. Confirm supplied lens, hardware and firmware before ordering. Lens-dependent field of view and recording frame-rate conditions are retained. Audio and alarm interfaces limited to -S are excluded from this exact -I model. DORI distances are manufacturer reference distances for detection, observation, recognition and identification, not a guarantee of analytics performance.
• Readers, locks, power supplies, batteries, licences and other accessories are not assumed to be included. ISD confirms specification, compatibility, supply, price, lead time and local warranty separately.

Official documents

• Hikvision DS-2CD2123G2-I manufacturer reference

Manufacturer source checked 2026-09-10. The supplied unit and local terms require confirmation.