Product Overview
For outdoor perimeters where long-range night visibility and accurate motion classification both matter, the Hikvision DS-2CD2T66G2H-4I delivers a compelling upgrade over standard IR-only bullet cameras. This 6 MP bullet-style hybrid camera pairs ColorVu warm-light illumination with an 80 m infrared system, automatically blending both light sources to produce colour imaging in near-darkness and switching to full IR when ambient conditions drop below the warm-light threshold. Featuring a fixed 4 mm lens for focused directional coverage, it incorporates AcuSense Gen 2 deep-learning analytics to classify detected motion as human or vehicle targets, reducing unnecessary alert triggers from environmental sources. Equipped with 120 dB True WDR for handling high-contrast scenes, H.265+ compression for storage efficiency, a built-in microphone, and an IP67-rated housing rated from -30 degrees C to +60 degrees C, this model replaces the earlier DS-2CD2T66G2 series with improved hybrid lighting performance. It is well suited to warehouse perimeters, car parks, loading docks, fence lines, and long outdoor approaches.
Key Capabilities
Hybrid ColorVu + IR Illumination
The camera combines warm-light and infrared LEDs, producing full-colour footage in low ambient light and transitioning automatically to IR in complete darkness. This hybrid approach ensures usable colour detail across a much wider range of night conditions than a single-mode system can achieve.
80 m Smart IR Range
With IR illumination reaching up to 80 m, this 4 mm bullet covers long outdoor approaches, fence lines, and extended car park rows without requiring supplementary lighting infrastructure. Smart IR automatically adjusts intensity to avoid overexposure on close subjects.
6 MP Resolution at 3200 x 1800
The 6 MP progressive scan CMOS sensor captures detailed footage across a wide scene, supporting accurate post-event review of vehicles, faces, and movement at a level of detail that lower-resolution bullet cameras cannot match at the same distance.
AcuSense Gen 2 Human and Vehicle Detection
On-board deep-learning analytics classify motion events as human or vehicle targets, filtering out false triggers caused by swaying vegetation, weather, and small animals. This makes the DS-2CD2T66G2H-4I practical for sites where alert fatigue from constant notifications is a known problem.
120 dB True WDR
High dynamic range processing balances bright and shadowed areas within the same frame, keeping exposure accurate at site entrances, gates with overhead lighting, or any location where strong backlight would otherwise wash out subject detail.
IP67 Weatherproof Housing
The metal bullet housing is dust-tight and rated for full water ingress protection, operating reliably between -30 degrees C and +60 degrees C. This covers the temperature extremes encountered across Australian outdoor installations from alpine sites to industrial facilities in tropical climates.
Best For
- Perimeter and Fence Line Coverage: The 4 mm fixed lens and 80 m IR range make this camera suited to monitoring long outdoor boundaries, warehouse yards, and industrial fence lines where subject detail at distance is required.
- Car Parks and Loading Docks: AcuSense human and vehicle detection combined with 6 MP resolution supports accurate event review and targeted alerts in high-traffic outdoor areas where generic motion detection would produce constant false notifications.
- Site Entry Points and Gates: The hybrid ColorVu system captures colour vehicle and plate detail at entry points without relying on external lighting, while 120 dB WDR manages headlight glare and strong backlight conditions.
- Installations Replacing Older IR-Only Bullet Cameras: This model is a direct upgrade path from the DS-2CD2T66G2 series, adding hybrid colour night imaging and Gen 2 AcuSense to sites where the previous camera provided only black-and-white infrared footage.
Why Choose the DS-2CD2T66G2H-4I
The DS-2CD2T66G2H-4I stands apart from standard AcuSense bullet cameras through its hybrid illumination architecture. Where a conventional IR bullet produces only black-and-white footage at night, this model uses warm-light LEDs alongside the infrared array to retain colour information in low-light conditions, switching seamlessly to full IR only when necessary. The 4 mm lens provides a focused field of view suited to directional perimeter monitoring at range, supported by 80 m smart IR and 6 MP resolution for identifying targets and vehicles at distance. H.265+ compression reduces storage demands without sacrificing image quality, and the onboard microSD slot supports up to 512 GB for local recording independent of a recorder. Available through Security Wholesalers, the DS-2CD2T66G2H-4I is suited to integrators and site managers who need colour-capable perimeter coverage with intelligent detection and the structural durability required for permanent outdoor installation.
Buyer Decision Tips
Lens Variant: The DS-2CD2T66G2H series is available in a 2.8 mm variant (2I) with approximately 114 degrees horizontal field of view and IR up to 60 m, or this 4 mm variant (4I) with approximately 94 degrees horizontal and IR up to 80 m. If your priority is covering a wide open courtyard or short driveway, the 2I provides broader scene coverage. If you are monitoring a long approach road, fence line, or extended car park row, the 4I delivers greater reach and more usable subject detail at distance. Neither variant supports optical zoom, so the lens choice at the time of purchase determines the coverage geometry permanently.
Storage and Power: This camera supports local microSD recording up to 512 GB and NAS storage, providing flexibility for sites without a centralised recorder. It accepts standard PoE (IEEE 802.3af/at) power over a single Cat 5e or Cat 6 cable run, which simplifies installation at remote outdoor positions such as fence posts or perimeter walls where running a separate power cable would be impractical.
Key Features & Technical Specifications
| Image Sensor |
6 MP Progressive Scan CMOS |
| Resolution |
3200 x 1800 |
| Lens |
4 mm fixed focal length |
| Horizontal Field of View |
Approximately 94 degrees |
| IR Range |
Up to 80 m smart IR |
| Illumination Type |
Hybrid ColorVu warm light + infrared |
| WDR |
120 dB True WDR |
| Video Compression |
H.265+, H.265, H.264+, H.264 |
| Analytics |
AcuSense Gen 2 human and vehicle detection |
| Audio |
Built-in microphone |
| Ingress Protection |
IP67 |
| Operating Temperature |
-30 degrees C to +60 degrees C |
| Humidity |
Up to 95% non-condensing |
| Local Storage |
microSD up to 512 GB, NAS supported |
| Housing Colour |
Available in black or white |
| Replaces |
DS-2CD2T66G2 series |
Ideal Use Cases
Warehouse and Industrial Perimeters
The 80 m IR range and focused 4 mm field of view cover extended outdoor perimeter walls and yard approaches, while IP67 housing and the wide operating temperature range maintain consistent performance through Australian industrial environments including heat-affected sites and cold-climate facilities.
Car Park Coverage
AcuSense vehicle detection generates targeted alerts for unauthorised vehicle presence after hours, while 6 MP resolution provides sufficient detail for reviewing incidents across multiple bays. The hybrid illumination retains colour information on vehicles and clothing without requiring light poles or flood lighting.
Gate and Entry Monitoring
Positioned to face approaching vehicles at a site entrance, the 4 mm lens captures a scene width suitable for single-lane gate monitoring, while 120 dB WDR handles the contrast between headlights and surrounding darkness. AcuSense human detection also alerts to pedestrian access outside business hours.
Construction Site Security
Construction sites present challenging lighting conditions and require cameras that can run on temporary PoE infrastructure with local microSD storage when a permanent NVR is not yet on site. The DS-2CD2T66G2H-4I supports up to 512 GB microSD recording and delivers colour night imaging suited to after-hours intrusion monitoring.
Loading Dock and Despatch Areas
Loading docks involve regular movement during business hours and require accurate event recording for dispute resolution and theft prevention. The 6 MP sensor and H.265+ compression deliver detailed footage with reduced storage overhead, and the built-in microphone captures ambient audio context alongside the video stream.
Choosing the Right Model
- Choose this model if: You need a directional outdoor bullet camera with 80 m IR range, colour night imaging through hybrid illumination, and AcuSense human and vehicle classification at a fixed 4 mm focal length for long perimeter approaches, car parks, or gate monitoring.
- Choose the 2.8 mm (2I) variant if: Your installation requires a wider field of view to cover a broader scene such as an open courtyard or wide driveway entrance, and longer IR range beyond 60 m is not a priority. The narrower 4 mm lens on this model is not suited to wide-area coverage from a single mounting point.
- Choose a different model if: Your site requires adjustable framing after installation without physically repositioning the camera. A motorised varifocal bullet would allow lens angle adjustment during commissioning, whereas this model’s fixed 4 mm lens sets the field of view permanently at the time of mounting.
- Choose a different model if: Your application requires a discreet profile for indoor ceiling or wall mounting. The full-size bullet housing is designed for visible outdoor deterrence and directional coverage, and would be physically oversized and visually conspicuous in an indoor setting where a dome or turret form factor would be more appropriate.
FAQs
- What does the hybrid ColorVu + IR system actually do at night?
During low-light conditions, the warm-light LEDs activate alongside the infrared array to add colour information to the image, allowing the camera to record coloured clothing, vehicle colour, and environmental detail that a pure IR camera would render in black and white. When ambient light drops below the threshold at which colour is usable, the camera transitions to full IR mode and extends its range to the full 80 m.
- How does this differ from the original DS-2CD2T66G2 it replaces?
The DS-2CD2T66G2 used infrared-only illumination, producing black-and-white footage at night. The DS-2CD2T66G2H series adds the ColorVu hybrid warm-light system as well as the Gen 2 AcuSense deep-learning analytics engine, providing both colour night imaging and improved human and vehicle classification accuracy over the previous generation.
- What is the detection and recognition range of the 4 mm lens in IR mode?
Based on the DORI standard and Hikvision’s published figures for this model, the 4 mm lens supports detection distances up to approximately 77 m and recognition at closer ranges in IR mode. Full-colour imaging from the warm-light LEDs is effective at shorter distances dependent on scene lighting conditions.
- Does this camera support two-way audio?
The DS-2CD2T66G2H-4I includes a built-in microphone for audio capture. There is no built-in speaker confirmed for this model, so two-way voice communication is not a native capability of this camera.
- Can it record locally without an NVR?
Yes. The camera supports a microSD card up to 512 GB installed directly in the unit, allowing continuous or event-triggered local recording independent of a network video recorder. NAS storage is also supported for networked local recording without a dedicated recorder.
- Is the IP67 rating sufficient for direct rain exposure in Australian outdoor conditions?
IP67 provides full dust ingress protection and resistance to temporary water immersion, which covers all standard outdoor rain and wash-down exposure encountered in Australian installations. The operating temperature range of -30 degrees C to +60 degrees C accommodates conditions from alpine environments to tropical and arid industrial sites. This camera is available through Security Wholesalers for Australian installations.
- Is a junction box required for installation?
A junction box such as the Hikvision DS-1260ZJ is not mandatory but is commonly used to conceal conduit connections and provide a neater cable entry point at the wall or pole mount. It also offers additional weatherproofing at the cable entry. The camera can be installed directly against a flat surface using its integrated mounting base if conduit is not required.
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