Introduction to the Hikvision 4MP AcuSense Mini-Dome Camera
The Hikvision DS-2CD2546G2-IS is a compact, rugged IP fixed dome camera designed for reliable outdoor surveillance. Packing a 4 MP sensor, Hikvisions AcuSense deep-learning human and vehicle classification, advanced low-light imaging (DarkFighter), and an option of 2.8 mm or 4 mm fixed lenses, this mini-dome blends intelligent analytics with practical hardware for a wide range of installations. With PoE support, built-in microphone on IS models, and IP67 / IK08 protection, the camera is positioned as a cost-effective choice for installers and end users who need accurate detection and robust performance in mixed lighting and weather conditions.
- 4 MP resolution(2688 × 1520) for clear identification and scene detail.
- AcuSense AIfor human/vehicle classification that reduces false alarms.
- DarkFighter low-lighttechnology: colour imaging down to 0.003 Lux and B/W with IR to 0 Lux.
- Select lens options: 2.8 mm (wide) or 4 mm (narrower) with F1.4 aperture.
- Durable outdoors: IP67 weatherproof and IK08 vandal resistance.
- Flexible power and connectivity: PoE (802.3af) or 12 VDC, RJ45 10/100 network interface.
Detailed specifications and benefits
Understanding the technical underpinnings helps explain why the DS-2CD2546G2-IS performs reliably in real-world settings. Below are the key specification groups and the practical benefits they deliver.
- Sensor & resolution:A 1/3" progressive-scan CMOS sensor captures 4 MP (2688 × 1520) video at up to 25/30 fps, striking a good balance between image detail and bitrate/storage efficiency.
- Lens options:Choose a 2.8 mm lens for a wide field of view (approx. 102.76 horizontal) or a 4 mm lens (approx. 82.86 H FOV) when longer reach and subject detail are desired. Both lenses use an M12 mount and offer an F1.4 aperture for improved low-light capture.
- Encoding:H.265 and H.264 codecs (with H.265+/H.264+ optimizations) reduce bandwidth and storage needs while retaining image quality. Multiple streams and ROI/SVC support enable integration with NVRs, cloud systems, and VMS platforms.
- DarkFighter technology:Maintains usable colour images in extreme low light (down to 0.003 Lux) and switches to B/W with IR for total darkness.
- IR illumination:850 nm smart supplement light extends reach to roughly 30 m, enabling identification in no-light scenes while minimizing visible glow.
- WDR:120 dB wide dynamic range helps manage scenes with mixed bright and dark areas (for example, entrances with backlighting).
- AcuSense analytics:Deep-learning based classification differentiates humans and vehicles from other motion triggers like animals, foliage or weather, reducing false positives and improving event relevance.
- Smart events:Line crossing, intrusion, region enter/exit and tamper detection are supported, enabling automation and targeted recording.
- Audio:Built-in microphone on IS variants captures ambient audio for context (subject to local regulations).
- On-board storage:microSD support up to 512 GB plus ANR for reliable local buffering in case of network disruption.
- Integration:ONVIF (Profile S/G/T), Hik-Connect, iVMS and Hik-Central compatibility facilitate easy integration across many platforms.
- Power:PoE (802.3af) simplifies installation by combining power and data over a single cable; 12 VDC is an alternative. Typical PoE power consumption is low (~6.5 W).
- Environmental resilience:With IP67 sealing and IK08 impact resistance, the mini-dome stands up to harsh weather and moderate vandal attempts. Operating range of 66C to 606C supports most climates.
Use cases and scenarios where the camera excels
The DS-2CD2546G2-IS is well-suited to many common and specialized surveillance tasks. Its combination of AI analytics, low-light performance and rugged build make it particularly effective in the following scenarios:
For warehouses, construction sites, depots and gated facilities, AcuSense reduces false alarms by focusing on human and vehicle events. Pairing the camera with external NVRs and automated alerting allows security teams to respond only to verified threats, improving efficiency and lowering operational cost.
Wide-angle 2.8 mm lenses cover larger zones while the 4 mm option provides better detail for plate and driver identification. IR to ~30 m is useful for night-time parking areas where traditional lighting may be limited.
At shopfronts and entryways, the cameras WDR and DarkFighter capabilities manage backlit scenes and low-light hours, while AcuSense helps filter out irrelevant motion triggered by delivery vans or stray animals.
Compact dimensions and an unobtrusive dome design make it suitable for apartment block exteriors or gated communities where discreet but effective monitoring is required.
How it compares to similar products
When evaluating the DS-2CD2546G2-IS, consider three broad comparison points: traditional non-AI cameras, higher-resolution alternatives, and other form factors.
Compared with older models that rely on motion detection alone, the AcuSense-equipped mini-dome offers a marked reduction in false alarms through human/vehicle classification. This translates to fewer wasted operator interventions and lower cloud or NVR storage of irrelevant footage.
Higher-resolution cameras provide more pixel detail, which can be beneficial for distant identification, but they generally demand more bandwidth, storage, and processing power. The 4 MP resolution here is a pragmatic compromise: clearer than 2 MP for identification while more efficient than 8 MP for large deployments.
Mini-domes like the DS-2CD2546G2-IS are better protected against tampering (IK08) and are often less visually obtrusive than bullets. However, bullets may offer easier aiming adjustments in some installations. The choice depends on site aesthetics, mounting height, and anti-vandal requirements.
Customer feedback and typical reviews
While individual reviews vary by deployment, installers and end-users commonly highlight these points in feedback about this model and similar Hikvision AcuSense cameras:
- "AcuSense dramatically cut false alarms — we stopped getting alerts from animals and weather-related motion." — typical installer feedback.
- "DarkFighter gives surprisingly good colour at night in low streetlight conditions, useful for identifying people approaching the gate." — common end-user comment.
- "Easy PoE installation and low power draw made it simple to roll out across our site without upgrading infrastructure." — small business installer note.
These paraphrased sentiments represent aggregated user experiences and are offered as illustrative examples rather than quotes from specific verified customers.
Practical considerations and compliance
Before purchasing or deploying the DS-2CD2546G2-IS, verify compatibility with your VMS/NVR, the intended network architecture, and any regulatory requirements for audio recording in your jurisdiction. Hikvision devices typically carry markings like CE / UKCA depending on region; consult the official datasheet for the latest compliance, firmware and warranty details. For critical sites, use certified installers and follow best practices for secure network configuration (change default passwords, keep firmware updated, use secure ports/VPNs as required).
Conclusion: Why this camera is a great choice
The Hikvision DS-2CD2546G2-IS mini-dome hits a compelling balance between intelligence, image quality, and cost. With 4 MP resolution, AcuSense AI that meaningfully reduces false positives, DarkFighter low-light capability, and a tough IP67 / IK08 build, it is an excellent option for perimeter, car park, retail and small-to-medium sized site deployments. Its PoE support and efficient H.265 encoding make it straightforward to install and economical to operate, and the option of wide or narrower lenses provides deployment flexibility.
For organizations and installers seeking an approachable, AI-enabled outdoor dome that improves alert accuracy without the complexity or cost of high-resolution systems, the DS-2CD2546G2-IS represents strong value. Suggested retail pricing is modest (around $131 suggested), making it accessible for large deployments while keeping operating costs low. As always, confirm warranty and firmware policies and integrate the camera into a well-secured network for best results.
