Hikvision DS-2CD23126G3-I2UY 12MP 4mm AcuSense Darkfighter Fixed Turret IP Camera with Mic WHITE
Hikvision DS-2CD23126G3-I2UY — 12 MP Turret IP Camera with Mic (White, 4 mm)
12 MP G3 turret IP camera with ColorVuHikvision AcuSense vs ColorVu: UK Installer Guide for 2026 3.0, AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide, Hybrid Light to 40 m. 4 mm long-focal — 148 m DORI. Same-day dispatch, Leicester.
4 mm long-focal 12 MP turret (White) — 73.1° FoV / 148 m DORI Detect. F1.6 + 1/1.8" CMOS. Mic + AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide.
- 12 MP 4608 × 2592
- 4 mm F1.6 long-focal — 148 m DORI
- ColorVuHikvision AcuSense vs ColorVu: UK Installer Guide for 2026 3.0 + Hybrid Light to 40 m
- Mic + AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide
- IP67 + IK10
Hikvision DS-2CD23126G3-I2UY(4MM) — 12 MP AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide Turret IP Camera with Mic (White)
Hikvision G3 12 MP fixed-lens turret with 4 mm narrower-FoV optics — Powered by DarkFighter, AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide human/vehicle classification, 130 dB true WDR, IP67 / NEMA 4X. Longer reach for tighter scenes (DORI Detect 148 m).
Overview
The Hikvision DS-2CD23126G3-I2UY(4MM) is the 4 mm narrower-FoV variant in the 12 MP G3 "Powered by DarkFighter" turret line — chosen when the 2.8 mm 94° FoV is too wide and you need detail at distance. The 4 mm F1.6 lens delivers 73.1° horizontal FoV with DORI Detect 148 m / Recognise 29 m / Identify 14 m — making it well suited to longer aisles, courtyards, narrow driveways and corridors where the 2.8 mm sibling would over-cover.
The 1/1.8-inch Progressive Scan CMOS captures 4608 × 2592 imaging at 20 fps (or 30 fps stepped down to 4K) with 0.0008 Lux @ (F1.6, AGC ON) minimum colour illumination and 0 Lux performance with IR. Smart IR supplement light up to 40 m (850 nm) with intelligent supplement-light switching minimises light pollution. 130 dB true WDR captures both bright and shaded areas; 3D DNR, BLC, HLC, defog, distortion correction, EIS image stabilization, 4 polygon privacy masks and ROI-aware bit-rate control complete the image-engine.
AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide deep-learning analytics filter human and vehicle classifications on Line Crossing, Intrusion, Region Entrance and Region Exit events — reducing false alarms by ~90% compared with simple motion detection. Face Capture, scene-change detection, video-tampering and motion exception events are supported on-camera. Multi-codec output (H.265+ / H.264+ / H.265 / H.264 / MJPEG) up to 24 Mbps. ONVIF Profile S/G/T plus ISAPI / SDK / ISUP for VMS integration; iVMS-4200, Hik-Connect and Hik-Central are fully supported.
The 12 MP turret runs on PoE 802.3af Class 3 (max 10.5 W) or 12 VDC 0.7 A and includes microSD on-board storage up to 512 GB with Auto Network Replenishment (ANR). Built-in arrayed dual-microphone captures real-time audio. The metal chassis is IP67 ingress-protected and NEMA 4X moderate-level anti-corrosion. Operating range -30 °C to 60 °C, humidity ≤ 95% non-condensing.
Key Features
- 12 MP resolution at 4608 × 2592 on 1/1.8-inch Progressive Scan CMOS
- Powered by DarkFighter — excellent low-light at 0.0008 Lux @ (F1.6, AGC ON)
- 4 mm fixed F1.6 lens — 73.1° H FoV / 40.2° V FoV / 84.8° diagonal
- DORI D: 148 m, O: 59 m, R: 29 m, I: 14 m — longer reach than 2.8 mm sibling
- Smart IR supplement light up to 40 m (850 nm), smart supplement light switching
- AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide deep-learning Human + Vehicle classification
- 130 dB true WDR, 3D DNR, BLC, HLC, Defog, Distortion Correction, EIS
- Face Capture (deep-learning), Scene Change Detection, perimeter events
- Multi-codec: H.265+ / H.264+ / H.265 / H.264 / MJPEG; main stream up to 24 Mbps
- Built-in arrayed dual-microphone, 8 / 16 / 32 / 48 kHz sampling
- 1 × RJ45 10/100 Mbps Ethernet; PoE 802.3af Class 3 or 12 VDC
- microSD up to 512 GB; ANR; NAS storage
- ONVIF Profile S/G/T + ISAPI + SDK + ISUP
- iVMS-4200 / Hik-Connect / Hik-Central
- Metal chassis; IP67 + NEMA 4X moderate; -30 °C to 60 °C
Typical Applications
- Longer-reach scenes — corridors, narrow driveways, building approaches, gated entrances
- High-detail forensic surveillance at distance (DORI Detect 148 m)
- Perimeter and entrance monitoring with AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide-filtered alarms
- Car parks, loading bays needing longer-distance vehicle plate / face recognition (consult with installer for plate reading recommendations)
- Multi-camera replacement — single 4 mm 12 MP camera replaces 2 narrower-FoV cameras
Compatible Hikvision Devices
- Hikvision NVRs — DS-7600 / 7700 / 9600 series with AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide channel allocation
- Hikvision PoE switches — DS-3E0xxxP / DS-3E1xxxP / DS-3E2xxxP single-cable installs
- iVMS-4200 desktop, Hik-Connect mobile, Hik-Central enterprise VMS
- ONVIF Profile S/G/T compatible third-party VMS / NVR systems
- Storage: microSD up to 512 GB on-board, plus NAS via NFS / SMB / CIFS
Optional Accessories
- DS-1275ZJ-SUS — pendant mount adapter
- DS-1273ZJ-140 / DS-1273ZJ-140B — wall mount brackets
- DS-2200ZJ-WA-140 / DS-2200ZJ-WAJ-140 — wall mounts with junction box
- DS-1276ZJ-SUS — vertical pole mount
- DS-1280ZJ-PT6 — corner mount adapter
- DS-1271ZJ-140 / DS-2280ZJ-WA140 / DS-2210ZJ-WA-140 — pendant / wall variants
What's in the Box
- 1 × Hikvision DS-2CD23126G3-I2UY(4MM) 12 MP turret IP camera (White, 4 mm)
- 1 × mounting template + screw pack
- 1 × quick start guide + drill template
- 1 × waterproof RJ45 connector
📄 Download: Hikvision DS-2CD23126G3-I2UY Datasheet (PDF) — full technical specification including dimension drawings, accessory list and approval certificates.
Detailed Specifications — Hikvision DS-2CD23126G3-I2UY(4MM) (White, 4 mm)
Full technical specification taken from the official Hikvision DS-2CD23126G3-I2UY datasheet (20251029 revision).
| Camera | |
|---|---|
| Image Sensor | 1/1.8-inch Progressive Scan CMOS |
| Max. Resolution | 4608 × 2592 (12 MP) |
| Min. Illumination (Colour) | 0.0008 Lux @ (F1.6, AGC ON); 0 Lux with IR |
| Shutter Time | 1 s to 1/100,000 s |
| Day & Night | IR cut filter |
| Angle Adjustment | Pan 0°-360°, Tilt 0°-75°, Rotate 0°-360° |
| Lens | |
| Lens Type | 4 mm fixed focal lens |
| Lens Mount | M16 |
| Iris Type | Fixed |
| Aperture | F1.6 |
| Horizontal FOV | 73.1° |
| Vertical FOV | 40.2° |
| Diagonal FOV | 84.8° |
| Depth of Field | 3.5 m to ∞ |
| DORI | D: 148 m, O: 59 m, R: 29 m, I: 14 m |
| Illuminator | |
| Supplement Light Type | IR |
| Supplement Light Range | Up to 40 m |
| Smart Supplement Light | Yes |
| IR Wavelength | 850 nm |
| Video | |
| Main Stream (60 Hz) | 20 fps @ 4608 × 2592; 30 fps @ 3840 × 2160 / 2688 × 1520 / 1080p / 720p |
| Main Stream (50 Hz) | 20 fps @ 4608 × 2592; 25 fps @ 3840 × 2160 / 2688 × 1520 / 1080p / 720p |
| Sub-Stream | 30/25 fps @ 1280 × 720 / 640 × 480 / 640 × 360 |
| Third Stream | 10 fps @ 1920 × 1080 / 1280 × 720 / 640 × 480 (under certain settings) |
| Video Compression | Main: H.265+ / H.264+ / H.265 / H.264; Sub: H.265 / H.264 / MJPEG; Third: H.265 / H.264 |
| Video Bit Rate | 32 Kbps to 24 Mbps |
| Bit Rate Control | CBR / VBR |
| Wide Dynamic Range (WDR) | 130 dB true WDR |
| SNR | ≥ 52 dB |
| Image Stabilization | EIS |
| Image Enhancement | BLC, HLC, 3D DNR, Distortion Correction, Defog |
| Privacy Mask | 4 programmable polygon privacy masks |
| Audio | |
| Audio Input | Built-in arrayed dual-microphone |
| Built-in Speaker | No (microphone only on -2U; speaker on /SL variant) |
| Audio Compression | G.711 / G.722.1 / G.726 / MP2L2 / PCM / MP3 / AAC-LC |
| Audio Sampling Rate | 8 / 16 / 32 / 48 kHz |
| Environment Noise Filtering | Yes |
| Network | |
| Network Protocols | TCP/IP, 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, SRTP, SFTP |
| API | ONVIF (Profile S, G, T), ISAPI, SDK, ISUP |
| Simultaneous Live View | Up to 6 channels |
| User / Host | Up to 32 users; 3 levels |
| Security | HTTPS, 802.1X, digest auth, IP filter, TLS 1.1/1.2/1.3, security audit log |
| Network Storage | NAS (NFS, SMB/CIFS), Auto Network Replenishment (ANR) |
| Client | iVMS-4200, Hik-Connect, Hik-Central |
| Web Browser | Plug-in-free: Chrome 80+ / Firefox 80+ / Edge 89+ |
| Smart Function | |
| AcuSense | Human + Vehicle deep-learning |
| Perimeter Protection | Line crossing, Intrusion, Region entrance, Region exiting |
| Face Capture | Yes (deep-learning) |
| Smart Event | Scene change detection |
| Basic Event | Motion detection (human/vehicle), video tampering, exception |
| Linkage | Upload to FTP/NAS/SD; notify surveillance centre; trigger recording / capture; email |
| Interface | |
| Ethernet | 1 × RJ45 10/100 Mbps self-adaptive |
| On-board Storage | microSD up to 512 GB |
| Reset Key | Yes |
| General | |
| Power Supply | 12 VDC ± 25%, 0.7 A, max. 8.5 W |
| PoE | IEEE 802.3af Class 3 (max 10.5 W) |
| Material | Metal cover + metal body |
| Dimensions | Ø 138.3 mm × 115.4 mm |
| Weight | 750 g (1.7 lb.) |
| Operating Conditions | -30 °C to 60 °C; humidity ≤ 95% non-condensing |
| Protection | IP67 (IEC 60529-2013) |
| Anti-Corrosion | NEMA 4X (NEMA 250-2018) — moderate |
| Approvals | CE-EMC, CE-LVD, CE-RoHS, WEEE, REACH, CB |
| Languages | 33 incl. English, French, German, Spanish, Italian, Dutch, Polish, Portuguese, Russian, Japanese |
| Finish | White |
Frequently Asked Questions
What resolution does the Hikvision DS-2CD23126G3-I2UY record?
12MP (4608 × 2592) on a large 1/1.8-inch sensor.
How is the low-light performance?
Powered-by-DarkFighter technology with infrared night vision for clear images in very low light.
What lens does this version have?
A 4mm lens for longer-range coverage, with DORI detection up to around 148m.
Does it have audio?
Yes — a built-in microphone (the -U model).
Does it reduce false alarms?
Yes — AcuSense deep-learning analytics classify people and vehicles, with 130dB true WDR.
Is it weatherproof?
Yes — an IP67-rated, NEMA 4X metal housing for outdoor use.
How is it powered?
Via PoE or 12V DC.
Which recorders is it compatible with?
Hikvision NVRs that support 12MP resolution, plus third-party systems via ONVIF.
