Hikvision DS-2CD2146G2H-ISU(2.8mm)/BLACK 4MP AcuSense Vandal Dome

Hikvision DS-2CD2146G2H-ISU/BLACK — 4 MP AcuSense vandal dome in black

This is the black version of Hikvision's 4 MP G2H vandal dome, with the 2.8 mm lens. Mechanically and electronically it is identical to the white model — an F1.0 lens, AcuSense human and vehicle classification, a built-in microphone, audio and alarm terminals and an IP67 / IK10 aluminium alloy housing. Only the finish differs.

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 real targets. Face capture is supported.

Why specify black

It is not a cosmetic afterthought. A black dome mounted against a dark soffit, a black shopfront fascia, exposed steelwork or a slate ceiling essentially disappears, where a white one draws the eye and invites attention. Architects and shopfitters frequently specify black for exactly this reason, and on a heritage or design-led frontage a white camera can be the difference between a scheme being approved and being sent back.

The corollary is worth stating too: where the camera is meant to be seen as a deterrent, white remains the better choice. Black works when you want the coverage without the visual intrusion.

Coverage and DORI

This SKU is the 2.8 mm version: horizontal FOV 100.2°, vertical 54.7°, diagonal 119.7°, depth of field from 1.9 m. Hikvision's published DORI figures are detect 63 m, observe 25 m, recognise 12 m, identify 6 m. Treat the identify figure as the working constraint — for evidential facial detail the subject needs to be inside roughly 6 m. A 4 mm version narrows the view to 81.1° and pushes identification to about 7 m.

Built for places where cameras get hit

Aluminium alloy cover and body, rated IP67 and IK10. IK10 is the top impact class in IEC 62262, tested against a 20 joule strike — the rating to specify for shop floors, entrance lobbies, school corridors and licensed premises where the camera sits within reach.

Adjustment is pan 0° to 355°, rotate 0° to 355°, tilt 0° to 75° — just short of a full turn, unlike the turrets in this range.

One specification to check before you design around it

The alarm output is rated maximum 12 VDC, 30 mA, far below the 24 VDC / 1 A outputs on the bullets and PTRZ domes in this family. Thirty milliamps drives a logic input or a small relay coil. It will not drive a sounder, a strike or a lamp directly — you need an interposing relay for any real load.

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 entrances and lobbies shot into strong backlight
• 30 m Smart Supplement Light IR at 850 nm
• 2.8 mm fixed lens on an M12 mount, depth of field from 1.9 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 with ANR and card health detection, plus NAS (NFS, SMB/CIFS)
• ONVIF Profile S/T/G, ISAPI and SDK; iVMS-4200, Hik-Connect and HikCentral
• The Ethernet port is 10/100, not gigabit — ample at an 8 Mbps ceiling

Power, build and environment

• PoE IEEE 802.3af Class 3, max. 8.5 W, or 12 VDC 0.6 A max. 7.2 W
• Aluminium alloy, black finish; IP67 and IK10
• −30 °C to 60 °C, humidity 95% or less non-condensing
• Ø121.5 mm × 97.6 mm, approx. 550 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
• An interposing relay if the alarm output needs to switch anything beyond 30 mA
• A matching black junction box or pendant mount if it is not going onto a flat surface — a white bracket under a black camera defeats the point

Frequently asked questions

Is the black version any different to the white one?

Only the finish. Sensor, lens, analytics, ratings and power draw are identical.

What does IK10 mean in practice?

It is the highest impact class in IEC 62262, tested against a 20 joule strike — the rating to specify where the camera is within reach.

Can the alarm output drive a siren?

Not directly. It is a 12 VDC, 30 mA signalling contact, so it needs a relay module.

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.