DS-2CD2123G2-LIS2U(2.8mm) - is a compact and rugged dome IP camera, ideal for professional indoor and outdoor video surveillance systems.
The 2 MP Full HD sensor with 2.8mm fixed wide-angle lens offers sharp images and wide coverage up to 112°.
AcuSense technology with deep learning enables intelligent classification of people and vehicles , reducing false alarms.
The Smart Hybrid Light system with infrared and white light up to 30 m ensures effective visibility even at night.
The device is completed by the integrated dual microphone , the real 120 dB WDR , the H.265+ compression and the IP67 and IK10 vandal-proof protection , for high reliability and security. Hikvision
DS-2CD2123G2-LIS2U(2.8mm) – DOME CAMERA FIXED LENS 2.8mm 8MP - HUMAN AND VEHICLE DETECTION - DEEP LEARNING FUNCTION

The Hikvision DS-2CD2123G2-LIS2U(2.8mm) is a compact dome IP camera designed for intelligent and reliable indoor and outdoor video surveillance.
The 2 MP Full HD sensor combined with the 2.8mm wide-angle fixed lens guarantees sharp images and wide visual coverage.
AcuSense technology with artificial intelligence and deep learning enables accurate detection of people and vehicles while reducing false alarms.
The Smart Hybrid Light system with infrared and white light up to 30 m ensures effective visibility even in total darkness.
The device is completed by the integrated dual microphone , the real WDR 120 dB , the H.265+ compression and the IP67 and IK10 vandal-proof protection.
Main features:
- 2 MP Full HD resolution (1920×1080)
- 2.8mm wide-angle fixed lens
- AcuSense AI technology with people and vehicle classification
- Smart Hybrid Light with IR and white light up to 30 m
- Built-in dual microphone with noise reduction
- 120dB true WDR for balanced images
- Highly efficient H.265+ video compression
- IP67 and IK10 vandal-proof protection for outdoor use
Further details
The 2.8mm wide-angle fixed lens ensures a wide viewing angle of up to 112° , ideal for effectively monitoring large areas with uniform and detailed coverage.
The 2 MP Full HD (1920×1080) sensor ensures clear, sharp images , optimised for visual identification in residential and professional contexts.
AcuSense AI-based technology uses deep learning to distinguish real events from false alarms, improving system reliability.
The vehicle detection function allows for accurate monitoring of entrances, parking lots and transit areas.
Advanced motion detection with AI filters triggers alarms only when there is significant movement of people or vehicles.
Built-in deep learning algorithms support perimeter protection , intrusion detection, and line crossing with accurate target classification.
Full compatibility thanks to the support of the main network protocols such as ONVIF, TCP/IP, HTTPS, RTSP, IPv4/IPv6 , for easy integration into professional video surveillance systems.
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Technical data sheet
| DS-2CD2123G2-LIS2U(2.8mm) | |
| Room | |
| Image Sensor | 1/2.7" Progressive Scan CMOS |
| Max. Resolution | 1920 × 1080 |
| Min. Illumination | Color: 0.005 Lux @ (F1.6, AGC ON),0 Lux with light |
| Shutter Time | 1/3 s to 1/100,000 s |
| Day & Night | IR cut filter |
| Angle Adjustment | Pan: 0° to 360°,tilt: 0° to 75°,rotate: 0° to 360° |
| Lens | |
| Lens Type | Fixed focal lens, 2.8 mm |
| Focal Length & FOV | horizontal FOV 112°, vertical FOV 61°, diagonal FOV 132° |
| Lens Mount | M12 |
| Iris Type | Fixed |
| Openings | F1.6 |
| Depth of Field | 1 m to ∞ |
| Illuminator | |
| Supplement Light Type | IR, White Light |
| Supplement Light Range | Up to 30 m |
| Smart Supplement Light | Yes |
| IR Wavelength | 850mm |
| Video | |
| Main Stream | 50 Hz: 25fps (1920×1080, 1280×720) 60 Hz: 30fps (1920×1080, 1280×720) |
| Sub-Stream |
50Hz: 25fps (640×480, 640×360) |
| Third Stream |
50Hz: 10fps (1920×1080, 1280×720, 640×480, 640×360) |
| Video Compression |
Main stream: H.265/H.264/H.264+/H.265+, |
| Video Bit Rate |
32 Kbps to 8 Mbps |
| H.264 Type |
Baseline Profile, Main Profile, High Profile |
| H.265 Type |
Main Profile |
| Bit Rate Control |
CBR,VBR |
| Region of Interest (ROI) |
1 fixed region for main stream and sub-stream |
| Scalable Video Coding (SVC) |
H.264 and H.265 encoding |
| Target Cropping |
Yes |
| Audio | |
| Audio Compression |
G.711/G.722.1/G.726/MP2L2/PCM/MP3/AAC-LC |
| Audio Bit Rate |
64 Kbps (G.711ulaw/G.711alaw)/16 Kbps (G.722.1)/16 Kbps (G.726)/32 to 160 Kbps (MP2L2)/8 to 320 Kbps (MP3)/16 to 64 Kbps (AAC-LC) |
| Audio Sampling Rate |
8 kHz/16 kHz/32 kHz/48 kHz |
| Environment Noise Filtering |
Yes |
| Network | |
| Protocols | TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, RTCP, NTP, UPnP, SMTP, IGMP, 802.1X, QoS, IPv4, IPv6, UDP, Bonjour, SSL/TLS, PPPoE, SNMP, WebSocket, WebSockets |
| Simultaneous Live View |
Up to 6 channels |
| API | ONVIF (Profile S, Profile G, Profile T),ISAPI,SDK,ISUP |
| Security |
Password protection, complicated password, HTTPS encryption, IP address filter, Security Audit Log, basic and digest authentication for HTTP/HTTPS, TLS 1.1/1.2/1.3, WSSE and digest authentication for Open Network Video Interface |
| User/Host |
Up to 32 users. |
| Client |
iVMS-4200,Hik-Connect,Hik-Central |
| Network Storage |
NAS (NFS, SMB/CIFS),Auto Network Replenishment (ANR), |
| Web Browser |
Plug-in required live view: IE 11, |
| Image | |
| Image Parameters Switch |
Yes |
| Day/Night Switch |
Day, Night, Auto, Schedule |
| Image Settings |
Rotate mode |
| Wide Dynamic Range (WDR) |
120 dB |
| SNR | ≥ 52 dB |
| Image Enhancement | BLC, HLC, 3D DNR |
| Privacy Mask |
8 programmable polygon privacy masks |
| Interface | |
| Ethernet Interface | 1 RJ45 10M/100M self-adaptive Ethernet port |
| On-Board Storage | Built-in memory card slot, support microSD/microSDHC/microSDXC card, up to 512GB |
| Built-in Microphone | Built-in Microphone: Arrayed dual-microphone |
| Reset Key | Yes |
| Event | |
| Basic Event | Motion detection (support alarm triggering by specified target types (human and vehicle)), video tampering alarm, exception |
| Smart Event | Face detection |
| Linkage | Upload to FTP/NAS/memory card,notify surveillance center,send email,trigger recording,trigger capture |
| Deep Learning Function | |
| Perimeter Protection | Line crossing, intrusion Support alarm triggering by specified target types (human and vehicle) |
| General | |
| Power |
12 VDC ± 25%, 0.6 A, max. 7.2 W,Ø5.5 mm coaxial power plug,reverse polarity protection, |
| Material |
Base: aluminum alloy, cover: aluminum alloy |
| Dimension |
Ø121.5 mm × 97.6 mm (Ø4.78" × 3.84") |
| Package Dimension |
150 mm × 150 mm × 141 mm (5.9" × 5.5" × 5.5") |
| Weight |
Approx. 600 g (1.3 lb.) |
| With Package Weight |
Approx. 830 g (1.8 lb.) |
| 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) |
| 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 |
Heartbeat, mirror, flash log, password reset via email, password protection, anti-banding |
| Approval | |
| EMC | CE-EMC: EN 55032:2015+A1:2020, EN 50130-4:2011+A1:2014, EN IEC 61000-3-2:2019+A1:2021, EN 61000-3-3:2013+A1:2019+A2:2021 RCM: AS/NZS CISPR 32: 2015, IC: ICES-003: Issue 7, KC: KN32: 2015, KN35: 2015 |
| Safety | CB: IEC 62368-1: 2014+A11, CE-LVD: EN 62368-1: 2014/A11: 2017 BIS: IS 13252 (Part 1): 2010/IEC 60950-1: 2005, LOA: IEC/EN 60950-1 |
| Environment |
CE-RoHS (2011/65/EU) |
| Protection |
IP67: IEC 60529-2013,IK10: IEC 62262:2002 |


