Hikvision DS-2CD23126G3-IS2UY/SL 12MP 4mm AcuSense Darkfighter Fixed Turret IP Camera with Mic & Speaker WHITE
Hikvision DS-2CD23126G3-IS2UY/SL — 12 MP Turret with Mic, Speaker, Strobe, A&A I/O (White, 4 mm)
12 MP G3 turret with ColorVuHikvision AcuSense vs ColorVu: UK Installer Guide for 2026 3.0, AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide, Hybrid Light to 40 m, IP67. 4 mm long-focal — 148 m DORI. Mic + 2 W speaker + strobe + alarm I/O. Same-day dispatch, Leicester.
4 mm long-focal 12 MP G3 turret (/SL White) — 73.1° FoV / 148 m DORI. Mic + 2 W speaker + strobe + 1 alarm I/O. PoE Class 4.
- 12 MP 4608 × 2592
- 4 mm F1.6 long-focal — 148 m DORI
- Hybrid Light to 40 m
- Mic + 2 W speaker + strobe
- 1 alarm I/O
Hikvision DS-2CD23126G3-IS2UY/SL(4MM) — 12 MP AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide /SL Turret with Mic & Speaker (White, 4 mm)
Hikvision G3 12 MP active-deterrent turret with 4 mm narrower-FoV optics — 2 W speaker, white-light strobe, alarm I/O, Powered by DarkFighter, AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide, IP67 / NEMA 4X. Longer reach for tighter scenes.
Overview
The Hikvision DS-2CD23126G3-IS2UY/SL(4MM) combines the 4 mm narrower-FoV optics of the 12 MP G3 turret with the active-deterrent /SL features — 2 W speaker (110 dB SPL @ 10 cm), white-light strobe, line in/out audio, and 1×1 alarm I/O. The 4 mm F1.6 lens delivers 73.1° horizontal FoV with DORI Detect 148 m / Recognise 29 m / Identify 14 m — ideal for longer aisles, narrow driveways, courtyards and corridors where active deterrent is needed at distance.
The 1/1.8-inch Progressive Scan CMOS captures 4608 × 2592 imaging (20 fps @ 12 MP, 30 fps @ 4K) with 0.0008 Lux @ (F1.6, AGC ON) minimum colour illumination and 0 Lux performance with IR. Hikvision's Powered by DarkFighter ISP delivers excellent low-light noise reduction. Smart IR supplement light up to 40 m (850 nm). 130 dB true WDR. 3D DNR, BLC, HLC, defog, distortion correction, EIS image stabilization, 4 polygon privacy masks.
The /SL variant adds active deterrent: a built-in 2 W speaker (110 dB SPL at 10 cm) for Smart PA two-way talk and audio warning, plus a white-light strobe that flashes on AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide events. Audio interface adds a line-in and line-out (3.3 Vpp, terminal block, non-equilibrium) and an alarm input/output pair (1 × 1, max 24 VDC/24 VAC, 1 A). Power is upgraded to PoE 802.3at Class 4 (max 18 W) or 12 VDC 1.34 A (max 16 W) to drive the speaker and strobe. 820 g metal chassis.
AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide deep-learning Human + Vehicle classification reduces false alarms by ~90% on Line Crossing, Intrusion, Region Entrance and Region Exit events. Face Capture, scene-change detection, video-tampering and motion exception events supported. 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. iVMS-4200, Hik-Connect and Hik-Central are fully supported. microSD up to 512 GB on-board with ANR. IP67 + NEMA 4X. -30 °C to 60 °C operating range.
Key Features
- 12 MP at 4608 × 2592 on 1/1.8-inch Progressive Scan CMOS
- Powered by DarkFighter — 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)
- 130 dB true WDR, 3D DNR, BLC, HLC, Defog, Distortion Correction, EIS
- AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide Human + Vehicle classification
- Built-in 2 W speaker (110 dB SPL @ 10 cm) for Smart PA two-way talk + audio deterrent
- White-light strobe deterrent — flashing white LEDs on AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide events
- Line in/out audio + 1×1 alarm I/O via terminal block
- Built-in arrayed dual-microphone
- Multi-codec: H.265+ / H.264+ / H.265 / H.264 / MJPEG; main stream up to 24 Mbps
- 1 × RJ45 10/100 Mbps Ethernet; PoE 802.3at Class 4 (max 18 W)
- microSD up to 512 GB; ANR; NAS storage
- ONVIF Profile S/G/T + ISAPI + SDK + ISUP
- Metal chassis; IP67 + NEMA 4X moderate; 820 g; -30 °C to 60 °C
Typical Applications
- Longer-reach active deterrent — gated entrances, driveways, narrow corridors needing detection at 148 m
- Courtyards and loading bays where AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide triggers strobe + Smart PA to deter intruders
- Forensic-grade surveillance at distance with two-way talk for visitor management
- Sites requiring external sensor wiring (door contacts, PIR, gate switches) via alarm I/O
- Multi-camera replacement — single 4 mm 12 MP /SL camera replaces 2 cameras + standalone strobe
Compatible Hikvision Devices
- Hikvision NVRs — DS-7600 / 7700 / 9600 series with AcuSenseHikvision AcuSense NVR Range 2026: Sizing Guide channel allocation
- Hikvision PoE switches — Class 4 capable switch required (DS-3E1xxxP / DS-3E2xxxP)
- 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 — wall mount bracket
- DS-2200ZJ-WA-140 — wall mount with junction box (audio + alarm wiring guide)
- DS-1276ZJ-SUS — vertical pole mount
- DS-1280ZJ-PT6 — corner mount adapter
What's in the Box
- 1 × Hikvision DS-2CD23126G3-IS2UY/SL(4MM) 12 MP /SL turret IP camera (White, 4 mm)
- 1 × mounting template + screw pack
- 1 × audio + alarm terminal block wiring connector
- 1 × quick start guide + drill template
- 1 × waterproof RJ45 connector
📄 Download: Hikvision DS-2CD23126G3-IS2UY/SL Datasheet (PDF) — full technical specification.
Detailed Specifications — Hikvision DS-2CD23126G3-IS2UY/SL(4MM) (White, 4 mm)
Full technical specification taken from the official Hikvision DS-2CD23126G3-IS2UY/SL datasheet (20250825 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 |
| Lens | |
| Lens Type | 4 mm fixed focal lens |
| 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 |
| IR Wavelength | 850 nm |
| Flashing Light | White-light strobe (event-triggered) |
| Video | |
| Main Stream | 20 fps @ 4608 × 2592; 30 fps @ 4K / 1080p / 720p |
| Video Compression | H.265+ / H.264+ / H.265 / H.264 / MJPEG |
| Video Bit Rate | 32 Kbps to 24 Mbps |
| WDR | 130 dB true WDR |
| SNR | ≥ 52 dB |
| Image Enhancement | BLC, HLC, 3D DNR, Distortion Correction, Defog, EIS |
| Audio | |
| Audio Input | Built-in arrayed dual-microphone + 1 × line in (3.3 Vpp, terminal block) |
| Audio Output | 1 × line out (3.3 Vpp, terminal block, 100 Ω impedance) |
| Built-in Speaker | Yes — 2 W max, 110 dB SPL @ 10 cm |
| Audio Compression | G.711 / G.722.1 / G.726 / MP2L2 / PCM / MP3 / AAC-LC |
| Audio Sampling Rate | 8 / 16 / 32 / 48 kHz |
| Alarm | |
| Alarm Input | 1 input (terminal block) |
| Alarm Output | 1 output (max. 24 VDC / 24 VAC, 1 A) |
| Network | |
| API | ONVIF (Profile S, G, T), ISAPI, SDK, ISUP |
| Simultaneous Live View | Up to 6 channels |
| Security | HTTPS, 802.1X, digest auth, IP filter, TLS 1.1/1.2/1.3 |
| Network Storage | NAS (NFS, SMB/CIFS), ANR |
| Client | iVMS-4200, Hik-Connect, Hik-Central |
| Smart Function | |
| AcuSense | Human + Vehicle deep-learning |
| Perimeter Protection | Line crossing, Intrusion, Region entrance, Region exiting |
| Face Capture | Yes (deep-learning) |
| Basic Event | Motion, video tampering, exception |
| Linkage | Upload to FTP/NAS/SD; trigger speaker + strobe + recording / capture; email |
| Interface | |
| Ethernet | 1 × RJ45 10/100 Mbps self-adaptive |
| On-board Storage | microSD up to 512 GB |
| General | |
| Power Supply | 12 VDC ± 25%, 1.34 A, max. 16 W |
| PoE | IEEE 802.3at Class 4 (max 18 W) |
| Material | Metal cover + metal body |
| Dimensions | Ø 138.3 mm × 115.4 mm |
| Weight | 820 g (1.8 lb.) |
| Operating Conditions | -30 °C to 60 °C; humidity ≤ 95% non-condensing |
| Protection | IP67 / NEMA 4X moderate |
| Approvals | CE-EMC, CE-LVD, CE-RoHS, WEEE, REACH, CB |
| Finish | White |
Frequently Asked Questions
What resolution does the Hikvision DS-2CD23126G3-IS2UY/SL 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.
What lens does this version have?
A 4mm lens for longer-range coverage, with DORI detection up to around 148m.
What deterrent features does the /SL model add?
A built-in microphone, a 2W speaker, a white-light strobe and alarm input/output — AcuSense detection can trigger audible and visual warnings to deter intruders.
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.
