DS-2CD2T46G2H-2I(4mm) - is a 4 MP (2688×1520) IP bullet camera with a 4mm fixed lens and an 81.1° horizontal viewing angle, ideal for medium-range perimeter monitoring. Thanks to DarkFighter technology, it offers excellent low-light performance down to 0.001 Lux , while 120 dB WDR ensures clear images even in strong backlighting. It integrates AcuSense with deep learning for intelligent classification of people and vehicles, reducing false alarms and improving system efficiency. It supports H.265+ compression , IR illuminator up to 60 m and IP67 protection, ensuring reliability and resistance in professional outdoor environments. Hikvision
DS-2CD2T46G2H-2I(4mm) – MINI BULLET CAMERA FIXED LENS 4mm 4MP - HUMAN AND VEHICLE DETECTION - DEEP LEARNING FUNCTION - DARKFIGHTER

The Hikvision DS-2CD2T46G2H-2I 4mm is a professional IP bullet camera with 4 MP (2688×1520) resolution and 4mm fixed lens with 81.1° horizontal FOV, ideal for perimeter control and medium-long range monitoring. Thanks to DarkFighter technology, it guarantees bright images up to 0.001 Lux , while the 120 dB WDR ensures clarity even in strong backlighting. It integrates AcuSense with deep learning for intelligent classification of people and vehicles, drastically reducing false alarms. It supports H.265+ compression , IR illuminator up to 60m and IP67 protection, offering maximum reliability in outdoor installations.
Main features:
- Resolution 4 MP 2688×1520
- 4mm fixed lens with FOV 81.1°
- DarkFighter Technology 0.001 Lux
- Real WDR 120 dB
- H.265+ video compression
- IR up to 60 m and IP67 protection
Further details
4mm lens with 81.1° horizontal FOV and F1.0 aperture , designed for medium-range shooting and perimeter control with high detail on gates, entrances and external areas.
4 MP (2688×1520) 1/3" Progressive Scan CMOS sensor for high-definition images, higher pixel density and better subject identification.
Targeted vehicle identification thanks to dedicated AI algorithms, ideal for parking lots, industrial areas and access control.
Advanced motion detection system with filtering by target type (people and vehicles) and advanced event management.
Smart features such as Face Capture and Perimeter Protection (line crossing, intrusion, region entrance/exit) for intelligent video analytics and proactive security.
Full compatibility with TCP/IP, HTTP, HTTPS, RTSP, ONVIF (Profile S, G, T), IPv4/IPv6 protocols, ensuring smooth integration into professional IP video surveillance systems.
Technical data sheet
| DS-2CD2T46G2H-2I(4mm) | |
| Room | |
| Image Sensor | 1/3" Progressive Scan CMOS |
| Max. Resolution | 2688 × 1520 |
| Min. Illumination | Color: 0.001 Lux @ (F1.0, AGC ON),B/W: 0 Lux with IR |
| 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 81.1°, vertical FOV 44.7°, diagonal FOV 94.6° |
| Lens Mount | M12 |
| Iris Type | Fixed |
| Openings | F1.0 |
| Depth of Field | 2.5 m to ∞ |
| Illuminator | |
| Supplement Light Type | IR, White Light |
| Supplement Light Range | Up to 60 m |
| Smart Supplement Light | Yes |
| IR Wavelength | 850mm |
| Video | |
| Main Stream | 50 Hz: 25 fps (2688 × 1520, 1920 × 1080, 1280 × 720) 60Hz: 30fps (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 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 |
| Network | |
| Protocols | TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, NTP, UPnP, SMTP, IGMP, 802.1X, QoS, IPv4, IPv6, UDP, Bonjour, SSL/TLS, PPPoE, SNMP, ARP, WebSocket, WebSockets |
| Simultaneous Live View |
Up to 6 channels |
| API | Open Network Video Interface (PROFILE S, PROFILE G, PROFILE T), ISAPI, SDK |
| 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 |
| 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 10, IE 11, |
| Image | |
| Image Parameters Switch |
Yes |
| Image Settings |
Rotate mode, saturation, brightness, contrast, sharpness, gain, white balance adjustable by client software or web browser |
| Day/Night Switch |
Day, Night, Auto, Schedule |
| Wide Dynamic Range (WDR) |
120 dB |
| SNR | ≥ 52 dB |
| Image Enhancement | BLC, HLC, 3D DNR |
| Privacy Mask |
4 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 |
| Reset Key | Yes |
| Event | |
| Basic Event | Motion detection (support alarm triggering by specified target types (human and vehicle)), video tampering alarm, exception |
| Smart Event | Scene change detection |
| Linkage | Upload to NAS/memory card/FTP, notify surveillance center, trigger recording, trigger capture, send email |
| Deep Learning Function | |
| Face Capture | Yes |
| Perimeter Protection | Line crossing, intrusion, region entrance, region exiting 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 |
Front cover: Metal, body: Metal, bracket: Metal |
| Dimension |
286.7 mm × 93.1 mm × 91.2 mm (11.3" × 3.7" × 3.6") |
| Package Dimension |
386 mm × 156 mm × 155 mm (15.2" × 6.1" × 6.1") |
| Weight |
Approx. 1085 g (2.4 lb.) |
| With Package Weight |
Approx. 1639 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 |
| Safety | UL: UL 62368-1, CB: IEC 62368-1: 2014+A11, CE-LVD: EN 62368-1: 2014/A11: 2017 |
| Environment |
CE-RoHS (2011/65/EU) |
| Protection |
IP67: IEC 60529-2013 |


