Hikvision Pro Series · 6MP DarkFighter · AcuSense · 80m IR · 120dB WDR · IK10
Hikvision 6MP DarkFighter Bullet
Hikvision DS-2CD2T66G2H-4I — 6MP DarkFighter AcuSense Fixed Bullet Camera with 80 m IR & IK10 Vandal Housing
The Hikvision DS-2CD2T66G2H-4I is a 6 MP AcuSense fixed bullet camera from Hikvision's Pro Series — the workhorse for commercial and residential perimeters where you need true monochrome night vision at long range and reliable human-and-vehicle classification without paying DeepinView pricing. A 1/1.8" progressive CMOS with DarkFighter ultra-low-light technology delivers clean imaging at just 0.003 lux , and when the light goes below that the 80 m Smart IR illuminator kicks in — one of the longest IR distances in the 6 MP Hikvision range. AcuSense H/V classification filters false alarms on animals, foliage and precipitation so your NVR only pushes notifications on actual humans and vehicles. Available in 2.8 mm wide-angle or 4 mm narrower-view lens, in White or Black finish. Backed by 3-year Australian warranty from CCTV Guru.
Resolution
6 MP · 3200 × 1800
Lens Options
2.8 mm (101°) or 4 mm (87°) · F1.6
Low-Light
DarkFighter · 0.003 lux · 80 m IR
AcuSense AI
Human + Vehicle Classification
Protection
IK10 · IP67 · White or Black
Choose Your Lens — 2.8 mm Wide Angle or 4 mm Narrower View
Same camera body, same 6 MP DarkFighter sensor — pick the lens focal length that suits your scene. The 2.8 mm wide-angle covers a broader area with a shorter effective distance; the 4 mm narrower-view gives you more detail at longer range with a tighter frame. Both are F1.6 fixed-focus with an 80 m IR illuminator built in.
Lens Comparison — 2.8 mm vs 4 mm
2.8 mm Wide Angle (White SKU: DS-2CD2T66G2H-4I · Black SKU: DS-2CD2T66G2H-4I-BLK)
Horizontal FOV ~101° · Vertical ~55° · Diagonal ~122°. Best for entry doors, garages, small yards, driveways up to ~10 m , wall-mounted corners covering a broad approach. Wider, less-detailed at distance.
4 mm Narrower View (White SKU: DS-2CD2T66G2H-4I-4MM)
Horizontal FOV ~87° · Vertical ~46° · Diagonal ~105°. Best for longer driveways, side fences, boundary lines, car parks, commercial forecourts — the extra reach gives you readable faces and plates at 10-25 m where the 2.8 mm would only give a body-in-frame shot.
Rule of thumb: if the target is closer than ~8 m and you need broad coverage, go 2.8 mm. If the target is 8-25 m away and you want identification-level detail, go 4 mm. Not sure? Pick the 2.8 mm — you can always crop in on 6 MP footage.
What Makes This Camera Worth Its Price
1/1.8" Sensor + DarkFighter Ultra-Low-Light
The larger 1/1.8" progressive CMOS (vs 1/2.8" on entry cameras) collects more light per pixel — brighter night image, cleaner shadows, less noise. DarkFighter processing pushes minimum illumination to 0.003 lux before IR kicks in.
80 m Smart IR — One of the Longest in Hikvision 6 MP
80 metres of IR with Smart IR intensity + angle auto-adjust. Useful for long rural driveways, large commercial forecourts, and open-yard perimeters where cheaper cameras (30-40 m IR) leave dark zones at the far end.
120 dB True WDR
Real hardware WDR, not digital — handles the classic Australian problem scenes: sunlit garage door with dark interior, driveway staring into afternoon sun, front verandah under harsh backlight. Both bright and dark regions stay legible.
AcuSense — Human / Vehicle Classification
Onboard deep-learning filters false alarms on animals, wind-blown leaves, rain and headlight flare. Your NVR only fires an alert when the camera actually sees a person or vehicle — dramatically reduces phantom notifications.
IK10 Vandal-Proof + IP67 Weatherproof
Metal housing rated for 20-joule impact (IK10) and full dust-tight + immersion protection (IP67). Suitable for wall-mounted commercial installs where the camera is within reach of vandals, and outdoor mounting in rain, dust and full sun.
H.265+ Smart Compression
Reduces bandwidth and storage by ~50 % vs H.265 alone, and up to 75 % vs H.264. A single 6 MP stream at ~25 fps uses ~4-6 Mbps with H.265+ — a 4 TB HDD holds ~30-45 days on 4 cameras.
Where This Camera Belongs
Residential Driveways & Front Yards
4 mm covers a typical AU suburban driveway from front door to street. Number-plate readable at 10-15 m. 80 m IR blows out the phantom shadow zone at the street kerb that 30 m IR cameras can't reach.
Commercial Forecourts, Loading Docks
Long-range 4 mm variant with 80 m IR — reads plates and identifies drivers at the back of the loading bay, while illuminating enough of the yard to see vehicle movements through the frame.
Rural Properties & Farm Yards
The 80 m IR reach is what makes this camera work at rural scale — a house-corner mount can cover the driveway all the way out to the gate. 6 MP resolution means readable faces on approach.
Warehouse & Industrial Perimeter
IK10 rating survives contact with forklifts, pallet racking and industrial machinery. AcuSense classification stops the NVR from waking up every time a fork truck moves inside the yard.
Body Corp / Strata Common Areas
Black finish blends into modern architectural facades; white finish for older render / weatherboard. Vandal-rated for accessible ground-floor mounting near common entries.
Retail & Hospitality Exteriors
2.8 mm wide-angle covers a shopfront + full footpath in one frame. AcuSense filters foot traffic from actual approaches, letting the NVR flag genuine after-hours activity.
Technical Specifications
DS-2CD2T66G2H-4I · Full Specifications
SKU — White · 2.8 mm
DS-2CD2T66G2H-4I
SKU — White · 4 mm
DS-2CD2T66G2H-4I-4MM
SKU — Black · 2.8 mm
DS-2CD2T66G2H-4I-BLK
Camera Type
Hikvision Pro Series · 6MP AcuSense Fixed Bullet · DarkFighter · IK10
Image Sensor
1/1.8" Progressive Scan CMOS
Max. Resolution
3200 × 1800 (6 MP)
Main Stream
25/30 fps @ 3200 × 1800 · 2560 × 1440 · 1920 × 1080
Lens Options
2.8 mm F1.6 (H 101°) or 4 mm F1.6 (H 87°) — fixed focal length
Field of View (2.8 mm)
Horizontal 101° · Vertical 55° · Diagonal 122°
Field of View (4 mm)
Horizontal 87° · Vertical 46° · Diagonal 105°
Min. Illumination
Colour: 0.003 lux @ F1.6 (AGC ON) · 0 lux with IR
Wide Dynamic Range
120 dB True WDR
Shutter Speed
1 s to 1/100,000 s
IR Distance
Up to 80 m · Smart IR intensity + angle auto-adjust
Video Compression
H.265+ · H.265 · H.264+ · H.264 · MJPEG
Smart Functions
AcuSense: Human + Vehicle classification · Line crossing · Intrusion · Region entrance · Region exiting
Additional Analytics
Motion detection · Video tampering · Face detection · Scene change · Audio exception
Alarm I/O
1 input · 1 output
Ethernet
1× RJ-45 10/100 Mbps
Protocols
IPv4/IPv6 · HTTPS · 802.1X · QoS · FTP · SMTP · UPnP · SNMP · DNS · DDNS · NTP · RTSP · TCP · UDP · IGMP · DHCP · Bonjour · SRTP · TLS
Storage
microSD / SDHC / SDXC up to 256 GB · NAS · ANR (Auto Network Replenishment)
API
ISAPI · Hikvision SDK · ONVIF (Profile S / G / T)
Client Software
iVMS-4200 · Hik-Central Professional · Hik-Connect
Power
12 VDC · PoE 802.3af Class 3 (max ≈ 8 W)
Weatherproof
IP67 (IEC 60529)
Vandal Resistance
IK10 (20-joule impact resistance)
Operating Temperature
−40 °C to +60 °C · humidity ≤95 %
Dimensions / Weight
Ø 88 × 231.1 mm · ~600 g
Finish Options
White (2.8 mm + 4 mm) or Black (2.8 mm only)
Warranty
3-Year Australian Warranty (back-to-base)
Pair with a Hikvision M-Series or AcuSeek NVR
DS-7604NI-M1/4P — 4CH · 4 PoE
Four-channel M-Series NVR — ideal for a single-family home with 4 of these bullets on the perimeter. View DS-7604NI-M1/4P →
DS-7608NI-M2/8P — 8CH · 8 PoE · 2 HDD
Eight channels with 2 HDD bays — commercial small-site and larger residential. View DS-7608NI-M2/8P →
DS-7616NI-M2/16P — 16CH · 16 PoE · 2 HDD
Mid-tier commercial site with up to 16 bullets on the perimeter. View DS-7616NI-M2/16P →
DS-7608NXI-I2/8P/VPro — AcuSeek AI NVR
For sites that want natural-language search across recordings. Full AcuSense metadata indexing. View AcuSeek NVR →
Frequently Asked Questions
What's the difference between the 2.8 mm and 4 mm lens? The 2.8 mm is a wider view — 101° horizontal FOV . The 4 mm gives you narrower reach — 87° horizontal FOV — but each pixel covers less scene, so detail at 10-25 m is better. Same sensor, same IR range, same AcuSense AI on both.
Why is Black only offered in 2.8 mm? Hikvision's supply of the black-finish version is limited to the 2.8 mm SKU (DS-2CD2T66G2H-4I-BLK). If you need a 4 mm in black, contact us — we sometimes have alternative black-finish Hikvision bullets in the same 6 MP range that might suit.
Does it need a special PoE switch? No — PoE 802.3af Class 3 (max ~8 W). Runs on any standard Hikvision NVR PoE port or generic 802.3af PoE switch. Also accepts 12 VDC for legacy or off-grid installs.
Does AcuSense really cut false alarms? Yes — typical reduction is 80-90 % vs a motion-only camera. The camera classifies the target as human, vehicle or "other" before firing an alarm. Rain, foliage, insects, animals and passing headlights get filtered out.
What's the actual IR range in practice? Hikvision rates it at 80 m under ideal conditions (dark sky, no ambient reflection). In practice — Australian suburban driveway with some ambient street glow — expect 50-70 m of usable IR. Still one of the longer IR distances in the 6 MP range at this price point.
Can I integrate with a non-Hikvision VMS? Yes — the camera speaks ONVIF Profile S, G and T and RTSP. Compatible with Milestone XProtect, Genetec, Exacq, Immix and most other AU VMS platforms. Note that AcuSense metadata is only fully indexed on Hikvision NVRs.
Downloads & Resources
Order the Hikvision DS-2CD2T66G2H-4I from CCTV Guru
Select your lens (2.8 mm wide-angle or 4 mm narrower-view) and finish (White or Black — Black is 2.8 mm only) from the dropdowns above. Australian stock, 3-year Australian warranty, fast Australia-wide dispatch, project pricing for multi-camera installs and specialist pre-sales advice from our Sydney team. Request a free quote or contact our Australian team .
