Model: DS-2CD2T46G1-4I/SL-1
Who This Is For
When covering long outdoor approaches is the priority - driveways, car parks, perimeter fences, loading docks - the DS-2CD2T46G1-4I is the camera installers and small-to-medium business owners consistently reach for. It is a 4MP AcuSense bullet camera with a 50-metre IR range, deep-learning human and vehicle classification, and a weatherproof IP67 housing rated to operate between -30°C and +60°C. That combination makes it equally at home on a warehouse eave, a commercial forecourt, or a rural property fence line. The 2.8mm or 4mm fixed lens options give installers a choice between a wide sweep of a yard or a tighter look down a corridor or driveway, and PoE (802.3af) keeps cabling clean and straightforward. For sites that need a capable, no-compromise outdoor camera without the complexity of motorised zoom or PTZ, this model covers the brief precisely.
What This Camera Actually Does
AcuSense Human & Vehicle Classification
Deep-learning algorithms sort motion events into human or vehicle triggers before an alert is sent. The result is fewer notifications from wind-blown trees, roaming animals, or passing headlight shadows - so when an alert does arrive, it actually warrants attention.
4MP Resolution at 30fps
At 2688 x 1520 pixels and a smooth 30 frames per second, the camera captures enough detail to read number plates at moderate distances and identify individuals in a yard - important when footage is reviewed after an incident.
50-Metre IR Night Vision
The built-in IR illuminators reach 50 metres in complete darkness. For a driveway, access road, or car park lane, that range means the camera is still doing useful work well before a subject is near a building entrance.
120dB Wide Dynamic Range
Where a camera faces a bright driveway or entrance with a shaded foreground, WDR balances the exposure so neither zone is blown out or silhouetted. This is particularly useful on east or west-facing walls during morning and afternoon light.
IP67 All-Weather Housing
Fully sealed against dust ingress and protected against sustained water jets, the IP67-rated housing suits exposed outdoor positions year-round. The operating temperature range of -30°C to +60°C covers everything from cold-climate sites to north-facing metal rooflines in summer.
Who Buys This Model
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Commercial property managers: Monitoring car parks, bin enclosures, and access gates where human and vehicle classification cuts down on after-hours false alarm callouts.
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Warehouse and logistics operators: Covering loading docks and yard perimeters with 50-metre IR, where the bullet form factor provides a visible deterrent alongside functional night coverage.
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Rural and semi-rural property owners: Running a camera on a long driveway or stock gate where the -30°C operating floor and PoE power option simplify installation in remote outbuildings.
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Security installers building AcuSense systems: Pairing this camera with a compatible Hikvision NVR to enable smart event search and human/vehicle filter playback across a multi-camera site.
Honest Assessment
The DS-2CD2T46G1-4I does outdoor fixed surveillance well. The 4MP sensor, 50-metre IR, and AcuSense classification are a genuine combination for sites where motion-triggered recordings pile up and operators need a way to filter what matters. The 120dB WDR handles the kind of high-contrast entrances that trip up cheaper cameras, and the IP67 housing holds up without fuss in exposed Australian conditions. Local MicroSD storage to 128GB adds edge redundancy if the network goes down. What it will not do is track a subject across a wide area - for that, a PTZ camera is the appropriate tool. It also does not produce colour night images in darkness; the IR output is monochrome, so if full-colour night footage is a project requirement, a TiOC or full-colour model from the Security Australia range would be worth comparing. For fixed outdoor positions where the brief is coverage, classification, and clean footage, this model is a solid, well-specified option.
Before You Buy
Lens Selection: The 2.8mm lens delivers a wide field of view suited to broad yard coverage or short approaches, while the 4mm lens tightens the angle for longer driveways and narrower corridors. Measure the distance from the mounting point to the furthest point of interest before ordering - switching lenses after installation means re-ordering a different variant.
AcuSense NVR Pairing: Human and vehicle classification events are most useful when the recording system supports AcuSense smart search and event filtering. Confirm your NVR is AcuSense-compatible before installation - pairing this camera with a standard NVR will still record video, but you will lose the smart event search and classification-based alert routing that makes this camera's AI genuinely useful.
Quick Fit Check
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Good match if: You need to cover a driveway, loading dock, or fence line up to 50 metres in darkness and want AI-filtered alerts that separate people and vehicles from general motion.
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Good match if: Your installation runs single Cat5e or Cat6 cable to each camera position - the 802.3af PoE support means no separate power run is needed at the camera end.
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You may need a different model if: Your site requires full-colour night footage or active light deterrence - a TiOC or strobe-equipped camera type would be more suitable for those requirements.
Key Features & Technical Specifications
Image Sensor
1/2.7" Progressive Scan CMOS
Max. Resolution
2688 x 1520 @ 30fps
Lens Options
2.8mm or 4mm fixed lens
Min. Illumination (Colour)
0.007 Lux @ F1.2 AGC ON; 0.012 Lux @ F1.6 AGC ON
Wide Dynamic Range
120dB WDR
Smart Features
AcuSense human and vehicle classification (deep learning)
Video Compression
H.265+, H.265, H.264+, H.264
Power Supply
12VDC or PoE IEEE 802.3af (Class 3)
Local Storage
MicroSD/SDHC/SDXC up to 128GB
Operating Temperature
-30°C to +60°C
Real-World Scenarios
Commercial Car Park After Hours
A retail centre mounts this camera at the entry lane. The 4MP resolution captures partial number plates and AcuSense filters out alerts from windblown rubbish bags overnight, leaving only genuine vehicle or pedestrian events for the guard station to review.
Mounted under a dock roof overhang, the IP67 housing handles rain splash and humidity without issue. The 50-metre IR covers the full apron in darkness, and the visible bullet form factor acts as a deterrent to opportunistic break-ins during early morning hours.
Mounted on a farm gate post running on 12VDC from a solar supply, this camera covers a long gravel approach. The -30°C operating floor means it keeps working through cold winters, and the MicroSD slot stores footage locally where network connectivity is limited.
East-Facing Building Entrance
Morning sun directly into the camera lens is a common failure point. The 120dB WDR balances the blown-out background against the shadowed foreground so the camera still captures usable face and clothing detail during the worst of the morning peak.
An installer pairs this camera with an AcuSense NVR to monitor a school fence line. After-hours human classification triggers an alert to the security monitoring company, while daytime motion from students does not generate unnecessary events during school hours.
How It Compares
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Choose this if: You need a fixed outdoor bullet camera with confirmed AI classification, 50-metre IR, and 4MP resolution for a long approach or perimeter position where the bullet form also serves as a visual deterrent.
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You may need a different model if: Your site requires active deterrence with strobe and audio warnings, or full-colour night footage - a TiOC-type camera is designed specifically for those use cases.
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Pairs well with: An AcuSense-compatible Hikvision NVR that supports smart event search and human/vehicle playback filtering.
Common Questions
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Does this camera work with a standard PoE switch or does it need a special injector?
Yes. The DS-2CD2T46G1-4I supports IEEE 802.3af PoE at Class 3, which is the standard supported by virtually all managed and unmanaged PoE switches on the market. No special injector is required. A single Cat5e or Cat6 cable to each camera carries both power and data, which keeps cable runs clean and reduces the number of connections at the camera end.
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Will this camera work without a network recorder - can it record to an SD card on its own?
Yes. The camera supports a MicroSD card up to 128GB for onboard recording, so it can operate as a standalone unit without an NVR. That said, SD-only recording means no centralised playback, no AcuSense smart search, and no redundancy if the card fills or fails. For most commercial deployments, an NVR is still recommended to get the most from the classification features.
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Does the AcuSense classification mean I will not get any false alerts at all?
No - AcuSense significantly reduces false alerts but does not eliminate them entirely. The deep-learning classification filters out most motion events caused by moving foliage, insects near the lens, or passing vehicle headlights. It then categorises remaining events as human or vehicle. You can configure your NVR or app to only notify on one or both of those categories, which in practice makes a substantial difference to alert fatigue on busy outdoor sites.
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What is the difference between the 2.8mm and 4mm lens options for this model?
The 2.8mm lens produces a wider angle of view, which suits broad coverage of yards, car parks, or short to medium approaches where you want to capture a wide scene. The 4mm lens narrows the field of view and brings subjects in the frame proportionally larger, which is better suited to longer driveways, corridors, or gate entries where you want more detail at distance. Both are fixed lenses - there is no optical zoom adjustment after installation, so the choice needs to be made before ordering.
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Is the night vision on this camera colour or black and white?
Black and white. The DS-2CD2T46G1-4I uses IR illuminators for night vision, which produces monochrome footage in low-light and darkness. During daylight or when supplemental white light is present, the camera records in colour. If full-colour night footage is a specific requirement for your site, you would need to look at a full-colour or TiOC camera type - Security Australia stocks both in the Hikvision range.
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Will this camera hold up installed on a north-facing metal roof in a hot Australian climate?
Yes. The rated operating temperature ceiling of +60°C is designed to handle the heat load experienced at exposed outdoor mounting points, including north-facing rooflines and metal structures in hot regions. The IP67 rating also ensures the housing remains sealed against dust ingress, which is relevant in arid and semi-arid environments where fine dust can degrade unprotected optics over time.
Downloads & Resources
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