Hikvision DS-2CD2T46G1-4I 4MP Outdoor Acusense Bullet Camera, H.265, WDR, 80m IR, IP67 4mm

Model: DS-2CD2T46G1-80MIR

Who This Is For

For security installers and business owners who need verified human and vehicle detection across long outdoor approaches without chasing down false alarm notifications every night. The Hikvision DS-2CD2T46G1-4I is a 4MP AcuSense bullet camera built for perimeter coverage at sites where the distance between the camera and the action is significant - think loading docks, rear laneways, commercial carparks, and gated driveways. The 80m IR range combined with a 4mm fixed lens gives a wide field of view that covers broad open areas, while AcuSense AI classification separates people and vehicles from animals, foliage, and weather. At 4MP with 120dB WDR, the camera holds detail in high-contrast scenes like vehicle headlights at night or bright sunlight on a white wall. IP67 weatherproofing and a -30°C to +60°C operating range make it a practical choice for exposed outdoor positions across Australian conditions.

What This Camera Actually Does

Who Buys This Model

• Commercial property managers: Covering rear laneways, loading docks, or carpark perimeters where 80m IR reaches across the full zone from a single mounting position.
• Industrial site security teams: Running AcuSense-triggered alerts after hours so operators are only notified when a person or vehicle enters a restricted area, not when the wind moves a tarp.
• Rural and semi-rural property owners: Installing on long driveway approaches or farm entries where the operating temperature range of -30°C to +60°C accommodates harsh seasonal variation.
• Installers specifying PoE systems: Using the 802.3af PoE support to run a single Cat cable to each camera position, eliminating the need for local power at each mounting point.

Honest Assessment

The DS-2CD2T46G1-4I does its core job well: it covers long outdoor distances in darkness using 80m IR, produces 4MP footage with genuine WDR handling in mixed-light scenes, and uses AcuSense classification to cut the noise out of motion alerts. H.265+ compression is a real-world benefit on multi-camera installs where storage costs add up. The IP67 rating and wide operating temperature range make it a practical choice for exposed Australian outdoor positions, not just a spec-sheet claim. What this camera will not do is provide full-colour night vision - the IR illumination produces greyscale at night, so if colour identification at night is a priority, a different camera type with white-light or full-colour technology would be more appropriate. The fixed 4mm lens also means you cannot adjust field of view post-installation, so lens selection needs to be confirmed before mounting. Available through Security Australia with Hikvision's standard product warranty.

Before You Buy

Quick Fit Check

• Good match if: You need to cover a long outdoor approach - driveway, loading dock, carpark aisle - in darkness, and 80m IR is sufficient to reach the far end of the zone from a single camera position.
• Good match if: You are running a PoE NVR system and need reliable AcuSense-triggered alerts that filter out animals and environmental motion, reducing after-hours false alarm fatigue.
• You may need a different model if: Colour night vision is a requirement for identifying clothing colour or vehicle colour in darkness - a full-colour or TiOC camera type would be more suitable for that outcome.

Key Features & Technical Specifications

Real-World Scenarios

How It Compares

• Choose this if: You need 80m IR range with AcuSense human and vehicle classification at 4MP on a single PoE cable - this combination at this price point is the primary reason buyers specify this model over a standard bullet.
• You may need a different model if: Your priority is colour identification in complete darkness - a full-colour or TiOC camera type with built-in white-light illumination will produce colour footage at night where this camera produces greyscale IR imagery.
• Pairs well with: An AcuSense-compatible Hikvision NVR that processes smart event triggers from the camera, enabling event-based recording and push notifications at the recorder level rather than relying on the camera alone.

Common Questions

1. Does this camera work with a standard PoE switch or does it need PoE+?

   No, this camera does not require PoE+ - it runs on standard IEEE 802.3af PoE at Class 3, which is supported by virtually all current PoE switches and PoE NVRs. A single Cat5e or Cat6 cable handles both power and data to the camera, with a maximum recommended cable run of 100m per standard Ethernet limits.

2. Will this camera produce colour footage at night?

   No. The DS-2CD2T46G1-4I uses infrared illumination for night vision, which produces greyscale imagery after dark. Colour video requires ambient light or a white-light illuminator. If colour identification at night is a requirement - for example, identifying clothing or vehicle colour - a full-colour night vision camera type would be the appropriate choice.

3. What does AcuSense actually filter out compared to standard motion detection?

   AcuSense classifies moving objects as human, vehicle, or neither. Standard pixel-based motion detection triggers on any change - wind-blown foliage, rain, insects close to the lens, or a passing animal. AcuSense limits alerts to confirmed human or vehicle targets, which significantly reduces false alarm frequency on sites with environmental motion. The classification runs on the camera's onboard chip, not the NVR.

4. Does this camera record without an NVR?

   Yes. The onboard MicroSD/SDHC/SDXC slot supports cards up to 128GB, allowing the camera to record locally without a network video recorder. This is useful as a standalone camera at a remote location or as a backup recording layer on a networked system. Footage stored on the card can be reviewed via the camera's web interface or supported VMS software.

5. How much storage does 4MP H.265+ recording actually use?

   Storage consumption depends on scene activity, frame rate, and bitrate settings, but H.265+ at 4MP in a typical low-activity outdoor scene runs at approximately 1.5 to 3 Mbps using smart encoding - roughly 20 to 40GB per camera per day at continuous recording. High-activity sites or scenes with constant motion will increase bitrate. A 128GB MicroSD card provides between 3 and 6 days of local storage depending on activity levels.

6. Will this camera handle direct coastal weather and high humidity?

   Yes. The IP67 rating covers full dust ingress protection and water immersion resistance to 1 metre depth, which exceeds what exposed coastal installations typically require. The operating temperature range of -30°C to +60°C covers Australian climate extremes from alpine areas to northern coastal environments. The bullet housing also provides a degree of sun shading over the lens that dome cameras without a sunshield do not. Stocked by Security Australia with standard Hikvision warranty terms.

7. Does the 4mm lens suit reading number plates at a distance?

   Not reliably. The 4mm fixed lens on this model produces a wide field of view suited to area coverage, not narrow high-detail capture. For number plate identification at 5m or more, a narrower fixed lens (8mm or longer) or a dedicated ANPR camera with appropriate focal length would produce far more consistent results. This camera captures scene-level vehicle presence well, but plate-level detail at distance is not a confirmed use case for this lens.

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