Hikvision DS-2CD2186G2H-ISU(2.8mm)/BLACK 4K AcuSense Vandal Dome

Hikvision DS-2CD2186G2H-ISU/BLACK — 4K AcuSense vandal dome in black

This is the black version of Hikvision's 4K G2H dome. Electronically it is identical to the white model, and that model is the strongest camera in the whole G2H range on two counts: it has the widest dynamic range and the longest identification distance. A 1/1.8" sensor at 3840 × 2160 behind an F1.0 lens, in 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

Against a dark soffit, a black shopfront fascia, exposed steelwork or a slate ceiling, a black dome effectively disappears where a white one draws the eye. Architects and shopfitters routinely specify black for this reason, and on a design-led or heritage frontage the finish can decide whether a scheme is approved at all.

The reverse holds too: where the camera is meant to be seen as a deterrent, white does that job better. Black is for coverage without visual intrusion — which pairs naturally with the IK10 rating, since a camera mounted within reach is often one you would rather people did not notice.

130 dB WDR — the only one in the range

Every other G2H camera is rated at 120 dB. This one is 130 dB. That extra stop of dynamic range is aimed at the hardest scene in most buildings: a doorway or shutter shot from inside, where the interior is dim and the daylight behind the subject is thousands of times brighter. It is the difference between a silhouette and a face.

Eight metres to identification

At 2.8 mm the field of view is 105.1° horizontal, 54.8° vertical, 128.2° diagonal, and the DORI figures are detect 89 m, observe 35 m, recognise 17 m, identify 8 m — against 6 to 7 m on the 4 MP models in the same family. The 4 mm version narrows the view to 90° and pushes identification to about 10 m.

Mind the standoff: minimum focus is 3.3 m. Mounted directly above a doorway at head height the image will be soft. And the infrared reaches 30 m against an 89 m detection range, so after dark the illuminator is the limit rather than the optics.

Vandal rated, with terminals

• IK10 to IEC 62262 — tested against a 20 joule strike, the top impact class
• IP67, aluminium alloy base and cover in black
• Built-in microphone, plus audio line in and line out on a two-core terminal block
• 1 alarm in, 1 alarm out
• Only 9.5 W on standard 802.3af PoE — light for a 4K camera

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 will drive a logic input or a small relay coil. It will not drive a sounder, a strike or a lamp directly. Put an interposing relay between the two if the camera needs to switch a real load.

Imaging

• 1/1.8" progressive scan CMOS, 3840 × 2160 at 25 fps (50 Hz)
• F1.0 aperture, 0.0008 lux in colour, 0 lux with IR on
• 130 dB WDR, plus BLC, HLC and 3D DNR
• 30 m Smart Supplement Light IR at 850 nm
• 2.8 mm fixed lens, depth of field from 3.3 m
• 4 programmable polygon privacy masks

Recording, storage and network

• H.265+/H.265/H.264+/H.264, 32 Kbps to 16 Mbps
• microSD/SDHC/SDXC to 512 GB with ANR and card health detection, plus NAS (NFS, SMB/CIFS)
• ONVIF Profile S/T/G, ISAPI, SDK and ISUP; iVMS-4200, Hik-Connect and HikCentral
• The Ethernet port is 10/100, not gigabit — comfortable at 16 Mbps, but worth knowing on a 4K camera

Build and environment

• Aluminium alloy base and cover, black finish; IP67 and IK10
• Pan 0° to 355°, tilt 0° to 75°, rotate 0° to 355°
• −30 °C to 60 °C, humidity 95% or less non-condensing
• Ø121.5 mm × 97.6 mm, approx. 525 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 recorder that supports 8 MP on the channel count you need
• A microSD card for edge recording or ANR backfill — not supplied
• An interposing relay if the alarm output must switch anything beyond 30 mA
• A matching black junction box or pendant mount if it is not going onto a flat surface

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.

How far can it identify someone?

About 8 m at this 2.8 mm lens, or 10 m at 4 mm — the longest reach in the G2H family.

What does 130 dB WDR buy me over 120 dB?

Roughly an extra stop of range between the brightest and darkest parts of a frame. It matters most shooting into daylight from inside a building.

Can the alarm output drive a siren?

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

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.