DS-2CD2T83G2-4LI2U(4mm) - is a bullet camera with 4mm lens designed for professional ultra-high definition video surveillance, ideal for monitoring medium-long areas with great precision. The 8 MP 4K resolution ensures extremely detailed images, while Acusense technology with artificial intelligence allows accurate recognition of people and vehicles , reducing false alarms. The Smart Hybrid Light system with IR and white light up to 80 m guarantees effective visibility even in total darkness, supported by real 120 dB WDR for high-contrast scenes. The integrated dual array microphone , H.265+ compression, and IP67 protection complete the features, making it ideal for high-security outdoor installations. Hikvision
DS-2CD2T83G2-4LI2U(4mm) – FIXED LENS BULLET CAMERA 4mm 8MP - HUMAN AND VEHICLE DETECTION - DEEP LEARNING FUNCTION

The Hikvision DS-2CD2T83G2-4LI2U bullet IP camera with 4mm lens is a professional solution for ultra-high definition video surveillance, ideal for monitoring medium-long areas. The 8 MP 4K resolution guarantees extremely detailed images, while Acusense technology with artificial intelligence allows for precise recognition of people and vehicles , reducing false alarms. The Smart Hybrid Light system with IR and white light up to 80 m ensures effective visibility even in total darkness, supported by 120 dB real WDR for high-contrast scenes. The integrated dual array microphone , H.265+ compression and IP67 protection complete the features, making it ideal for high-security outdoor installations.
Main features:
- 8 MP (3840×2160) Ultra HD 4K resolution
- 4mm fixed optics for medium and long distance shooting
- Acusense AI technology for people and vehicle detection
- Smart Hybrid Light with IR and white light up to 80 m
- Real WDR 120 dB
- Built-in dual array microphone
- H.265+ video compression
- IP67 protection
Further details
The 4mm optic is designed for medium to long-range surveillance, offering a balanced field of view that allows for greater depth of field and better subject identification than wide-angle optics.
The 8 Megapixel (3840×2160) CMOS sensor guarantees extremely detailed 4K images , ideal for advanced security applications where maximum visual clarity is required.
Deep learning-based Acusense technology intelligently analyzes the scene, accurately distinguishing people and vehicles from irrelevant elements, reducing false alarms.
The vehicle detection function allows for accurate monitoring of driveways, parking lots, and transit areas, increasing the level of security for professional and industrial settings.
The advanced motion detection system supports target classification, ensuring accurate notifications and optimized management of video events.
Deep learning features include perimeter protection such as line crossing and intrusion detection, with alarm triggering based on people and vehicles .
Support for major network protocols such as ONVIF, TCP/IP, HTTPS, RTSP, IPv4 and IPv6 ensures maximum compatibility , smooth integration and secure management in IP video surveillance systems.
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Technical data sheet
| DS-2CD2T83G2-4LI2U(4mm) | |
| Room | |
| Image Sensor | 1/2.8" Progressive Scan CMOS |
| Max. Resolution | 3840 × 2160 |
| 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 90°,rotate: 0° to 360° |
| Lens | |
| Lens Type | Fixed focal lens, 4 mm |
| Focal Length & FOV | horizontal FOV 88°, vertical FOV 44°, diagonal FOV 105° |
| Lens Mount | M12 |
| Iris Type | Fixed |
| Openings | F1.6 |
| Depth of Field | 2.6 m to ∞ |
| Illuminator | |
| Supplement Light Type | IR, White Light |
| Supplement Light Range | Up to 80 m |
| Smart Supplement Light | Yes |
| IR Wavelength | 850mm |
| Video | |
| Main Stream | 50 Hz: 20 fps (3840 × 2160) 25 fps (3200 × 1800, 2688 × 1520, 1920 × 1080, 1280 × 720) 60 Hz: 20 fps (3840 × 2160) 30 fps (3200 × 1800, 2688 × 1520, 1920 × 1080, 1280 × 720) |
| Sub-Stream |
50Hz: 25fps (1280×720, 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 16 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 | |
| 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 |
| Simultaneous Live View |
Up to 6 channels |
| API | ONVIF (Profile S, Profile G, Profile T),ISAPI,SDK,ISUP |
| 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 |
| 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%, 0.87 A, max. 10.5 W, Ø5.5 mm coaxial power plug, reverse polarity protection, |
| Material |
Metal |
| Dimension |
88.7 mm × 93.1 mm × 286.7 mm (3.5" × 3.7" × 11.3") |
| Package Dimension |
386 mm × 156 mm × 155 mm (15.2" × 6.1" × 6.1") |
| Weight |
Approx. 1115 g (2.5 lb.) |
| With Package Weight |
Approx. 1640 g (3.6 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 |


