Introduction: Meet the DS-2CD3T46G2-4ISY
The DS-2CD3T46G2-4ISY is a 4 MP AcuSense fixed bullet network camera designed for dependable outdoor surveillance. Combining Hikvision's DarkFighter low-light technology, powerful 850 nm EXIR illumination that reaches up to 90 meters, and AcuSense deep‑learning analytics for human and vehicle classification, this camera targets sites that need long-range, accurate detection and high-quality imaging day and night. With PoE support, rugged IP67 weatherproofing and an open embedded platform for third‑party apps, it is positioned for both professional and advanced DIY installations.
Key features at a glance
- 4 MP resolution(2688 × 1520) for clear, detailed images.
- AcuSense analytics— human & vehicle classification, perimeter protection and people counting.
- DarkFighter low‑light performancewith 850 nm EXIR IR illumination up to 90 m for reliable night coverage.
- Image enhancementincluding 120 dB True WDR, 3D DNR, BLC/HLC and defog for challenging lighting and weather.
- Flexible connectivity— PoE (IEEE 802.3at) or 12 VDC, ONVIF compatibility and common network protocols.
- Rugged outdoor design— IP67-rated housing and temperature tolerance for varied environments.
- HEOP support(Hikvision Embedded Open Platform) for third‑party apps and custom integrations.
Detailed specifications and benefits
The DS-2CD3T46G2-4ISY packs a long list of practical specifications that translate directly into real-world benefits for surveillance deployments.
- Image sensor:1/3" progressive scan CMOS, delivering up to 4 MP (2688 × 1520) at up to 25/30 fps — enough resolution to capture facial detail at moderate distances and to support forensic review.
- Lens:Fixed 4 mm, F1.4 with a horizontal field of view of approximately 84° — a good balance between scene coverage and subject detail for perimeters, parking areas and storefronts.
- Minimum illumination:Colour 0.003 Lux @ F1.4; black & white at 0 Lux with IR — DarkFighter technology enhances colour sensitivity in low light, reducing the need to rely solely on IR for identification.
- IR illumination:850 nm EXIR LEDs providing up to 90 m of night vision — suitable for long-range detection across car parks, driveways or perimeters without visible red glow from typical IR lighting.
- 120 dB True WDR:balances scenes with bright highlights and deep shadows (useful for entrances with direct sunlight or headlights).
- 3D DNR and image enhancements:reduce noise and improve clarity in low-light or adverse weather, along with BLC/HLC and defog to handle backlighting, glare and foggy conditions.
- Compression:H.265/H.265+/H.264/H.264+/MJPEG options to optimize bandwidth and storage depending on network and recorder capabilities.
- AcuSense analytics:on‑board deep‑learning models classify humans and vehicles, filter out many false alarms caused by animals, shadow or vegetation movement, and support perimeter protection rules.
- Other analytics:face capture and people counting features provide added value for retail or access monitoring scenarios.
- HEOP:Hikvision Embedded Open Platform allows deployment of third‑party apps or integrations, making the camera adaptable to specialised analytics or local processing needs.
- Storage options:microSD up to 512 GB, NAS (NFS/SMB/CIFS) and ANR support — so recording can continue if network links drop and footage can be archived flexibly.
- Protocols:ONVIF S/G/T and standard network protocols (HTTPS, TLS, SNMP, RTSP) facilitate integration with VMS platforms and security ecosystems.
- Connectivity:PoE (IEEE 802.3at) simplifies installation by carrying power and data over a single Ethernet cable; 12 VDC is available where PoE is not used.
- I/O:audio in/out and alarm in/out allow auxiliary devices such as microphones, speakers or external sensors to be connected directly.
- Ingress protection:IP67-rated housing (and NEMA 4X variants available) enables outdoor use in rain, dust and harsh weather.
- Operating range:rated from about -30 °C to 60 °C, suitable for many climates without additional environmental housings.
- Form factor:typical bullet camera dimensions (approx. 325.7 × 93.3 × 91.2 mm) and ~1.1 kg weight for straightforward mounting on walls or poles.
Use cases and scenarios where this camera excels
The DS-2CD3T46G2-4ISY is well suited to a range of real‑world installations where long-range night vision, accurate classification and robust weatherproofing matter. Typical use cases include:
- Perimeter surveillance:For industrial sites, warehouses and fenced compounds, the camera's 90 m IR and AcuSense analytics help detect and classify intrusions while reducing false alarms from animals or foliage.
- Car parks and driveways:Its long-range IR reach, WDR and vehicle detection capabilities make it a good choice for capturing licence plates in moderate conditions, monitoring flow and identifying suspicious activity.
- Street and roadside monitoring:Durable IP67 design and wide dynamic range enable continuous operation near roads where lighting and weather vary.
- Retail exteriors and entrances:Face capture and people counting features assist in access control and foot-traffic analysis when paired with a VMS or analytics platform.
- Transport hubs and perimeter fencing:The camera is useful where distinguishing people from vehicles at distance is important for operational alerts or automated responses.
How it compares with similar products
When evaluating the DS-2CD3T46G2-4ISY against similar bullet cameras, consider three main areas: imaging performance, analytics, and integration flexibility.
- Imaging:The combination of 4 MP resolution and DarkFighter tech gives this camera an advantage over basic 2 MP or standard low-light models by producing clearer night images and retaining colour detail longer in dim conditions. Cameras with larger sensors or faster lenses may outperform it in extreme low light, but they typically come at a higher cost.
- Analytics:AcuSense classification (human vs vehicle) is a differentiator versus older or budget cameras that rely solely on motion detection. Competing products from other vendors may offer similar deep‑learning features, but integration, accuracy and false-alarm rates vary — systems integrated into a broader vendor ecosystem (VMS, NVRs) can be easier to tune.
- Integration & extensibility:HEOP support sets this camera apart from closed devices by allowing third‑party apps to run on the edge. If you need specialised analytics or custom functions without adding edge devices, HEOP-capable cameras are advantageous. Non-HEOP cameras may still work fine in many deployments but limit on-camera extensibility.
- Price point:Positioned as a mid-to-upper tier bullet camera, it balances features and cost. It is typically more feature-rich (AcuSense, DarkFighter, 90 m IR) than budget models while offering a lower price than some specialist high-end low‑light or multi-sensor cameras.
Customer feedback and reviews
There are no specific verified customer testimonials included here, but feedback from installers and system integrators for similar AcuSense/DarkFighter cameras commonly highlights:
- Improved alarm quality due to human/vehicle filtering, which reduces time spent reviewing false alerts.
- Strong night coverage and useful detail at distance for perimeter and parking areas, particularly when combined with proper mounting and correct lens selection.
- Ease of installation with PoE and strong compatibility with mainstream VMS platforms via ONVIF support.
As with any security product, actual performance depends on installation quality, scene lighting, mounting height and angle, network configuration and how analytics are tuned. Prospective buyers should look for hands-on reviews or request sample footage where possible and work with certified installers for mission‑critical sites.
Conclusion: Why choose the DS-2CD3T46G2-4ISY?
The DS-2CD3T46G2-4ISY offers a compelling combination of long-range night vision, intelligent analytics and rugged outdoor design that make it a strong choice for perimeter, parking and street surveillance. Its 4 MP resolution and DarkFighter technology provide improved low-light imaging, while 120 dB True WDR and image enhancement functions help manage challenging lighting scenarios. AcuSense classification reduces false alarms and increases operational efficiency, and HEOP support expands integration and on‑camera capability for specialized applications.
For organizations and installers seeking a durable, feature-rich bullet camera that balances cost and functionality, the DS-2CD3T46G2-4ISY is a versatile option. Evaluate system needs such as mounting distance, lighting, storage strategy and VMS compatibility to ensure the camera is paired with the appropriate lenses, recorders and network setup. When deployed and configured correctly, it can substantially improve situational awareness and reduce time spent responding to non-actionable alerts.
For procurement, pricing and warranty details, check with authorized distributors or the manufacturer to confirm the latest specifications, certifications (CE/UKCA where applicable) and installation guidance.
