Hikvision DS-2CD2T46G2H-2I(4mm) 4MP AcuSense Bullet with 60m IR

Hikvision DS-2CD2T46G2H-2I (4 mm) — 4 MP AcuSense bullet with 60 m IR

This is the 4 mm version of Hikvision's G2H 4 MP fixed bullet: AcuSense human and vehicle classification, DarkFighter low-light performance, 60 m infrared and a full metal IP67 housing. No strobe, no speaker, no audio — a straightforward recording camera that filters out the false alarms.

AcuSense deep-learning classification separates people and vehicles from foliage, rain, shadows and animals, so line crossing, intrusion, region entrance and region exiting trigger only on the target types you care about. Face capture is supported.

4 mm or 2.8 mm — which to order

The camera is otherwise identical; the lens changes what it is good for. At 4 mm the field of view is 81.1° horizontal and the DORI figures are detect 78 m, observe 31 m, recognise 15 m, identify 7 m. At 2.8 mm the view opens to 100.2° but the figures fall back to 63 m detect and 6 m identify.

In practice: choose 4 mm when the camera is looking down a length — a driveway, an alley, a car park aisle, a corridor — and you want usable detail further out. Choose 2.8 mm when the camera is covering breadth close in, such as a yard corner or a shop floor. The 4 mm version also holds focus from 2.5 m rather than 1.9 m, so it is the weaker choice for anything mounted close to its subject.

At 4 mm the 60 m infrared comfortably covers the 78 m detection range for most practical purposes, so night performance stays well matched to the optics.

It runs on 802.3af

This camera draws a maximum of 9 W over IEEE 802.3af Class 3 PoE. That is a real advantage over the deterrence models in the same family — the IS2U/SL versions need 802.3at for their strobes and speakers. On an af-only switch, or a recorder with a tight power budget across every port, this camera fits where those do not.

What it does not have

The 2I has no built-in microphone, no speaker, and no audio or alarm terminal block. Ethernet port, microSD slot and reset key are its only physical interfaces. If you need two-way audio, an on-camera siren, or to wire in a detector or sounder, look at the ISU, IS2U or IS2U/SL models.

Imaging

• 1/3" progressive scan CMOS, 2688 × 1520 at 25 fps (50 Hz)
• F1.0 aperture, 0.001 lux in colour, 0 lux with IR on
• 120 dB WDR for gateways, yards and car parks shot into strong backlight
• 60 m Smart Supplement Light IR at 850 nm, which throttles back rather than burning out a close subject
• 4 mm fixed lens on an M12 mount, depth of field from 2.5 m
• BLC, HLC and 3D DNR; 4 programmable polygon privacy masks

Recording, storage and network

• H.265+/H.265/H.264+/H.264, 32 Kbps to 8 Mbps
• microSD/SDHC/SDXC to 512 GB, plus NAS (NFS, SMB/CIFS) and ANR to backfill footage recorded during a network outage. With a high-end Hikvision card, memory card encryption and health detection are also supported.
• ONVIF Profile S/T/G, ISAPI and SDK; iVMS-4200, Hik-Connect and HikCentral; up to 6 simultaneous live view channels
• The Ethernet port is 10/100, not gigabit — ample at an 8 Mbps ceiling

Build and environment

• Metal front cover, metal body and metal bracket; IP67 to IEC 60529-2013
• −30 °C to 60 °C, humidity 95% or less non-condensing
• 286.7 mm × 93.1 mm × 91.2 mm, approx. 1,085 g

What you'll need with it

• An 802.3af (or better) PoE switch or NVR port, or a 12 VDC supply
• An AcuSense-capable Hikvision NVR to carry human/vehicle classification through to smart search on the recorder
• A microSD card for edge recording or ANR backfill — not supplied
• A pole or corner bracket if it is not mounting flat to a wall

Frequently asked questions

Is the 4 mm version better than the 2.8 mm?

Not better, different. It sees further with more detail over a narrower field. For close, wide coverage the 2.8 mm is the right choice.

Does this camera have a microphone?

No. The 2I has no audio hardware at all.

Will it work on my existing 802.3af switch?

Yes — 802.3af Class 3 at a maximum of 9 W.

Will it work on a third-party NVR?

It supports ONVIF Profile S, T and G, so it will record on most ONVIF recorders. AcuSense classification is best supported on Hikvision recorders.

Trade pricing

Zenith Security Co is an authorised Hikvision partner. Prices shown are for trade account holders — contact us for account terms and stock availability.