Fixed Dome Network Camera 8MP (4K), AcuSense DarkFighter, DS-2CD2186G2-ISU(2.8MM)(C)

Introduction to the DS-2CD2186G2-ISU(2.8MM)(C): 8MP AcuSense DarkFighter Dome Camera

The Hikvision DS-2CD2186G2-ISU(2.8MM)(C) is a fixed dome network camera that brings 4K (8 MP) resolution, advanced low-light imaging and on-board deep-learning analytics to outdoor surveillance. Combining Hikvisions DarkFighter low-light technology with AcuSense human/vehicle classification, this model is designed for applications that demand clear detail, reliable identification and reduced false alarms. Offered with Power over Ethernet (PoE) and 12 VDC support, rugged IP67 and IK10 ratings, and flexible storage and streaming options, the DS-2CD2186G2-ISU is positioned as a versatile choice for many small-to-medium commercial and municipal deployments.

• 8 MP (3840 × 2160) 4K resolutionfor crisp, high-detail footage suitable for identification and forensic review.
• DarkFighter low-light imagingto preserve color and detail in very low illumination.
• AcuSense analyticsincluding human/vehicle classification, face capture and smart motion detection to reduce false alarms.
• Wide field of viewfrom a 2.8 mm fixed lens (approx. 111 horizontal FOV) with F1.6 aperture for broad scene coverage.
• Smart IR up to 30 mand 120 dB true WDR for balanced images in high-contrast or night scenes.
• Ruggedized for outdoors: IP67 weatherproof and IK10 vandal resistance.
• Flexible networking and storage: PoE (802.3af), microSD up to 256 GB, NAS and ANR, ONVIF compatibility.

Detailed specifications and benefits

The DS-2CD2186G2-ISU packs a comprehensive set of specifications that translate into real-world benefits for integrators and end users. Below is a breakdown of the most relevant technical details and what they mean in practice.

This camera uses a 1/1.8" progressive-scan CMOS sensor and delivers up to 3840 × 2160 (8 MP) resolution at frame rates up to 25/30 fps depending on region and settings. The higher pixel count provides greater detail for identifying faces, license plates and other small objects in the scene, and the progressive scan helps maintain motion clarity.

DarkFighter technology significantly improves image quality in low illumination, delivering usable color images at very low lux levels (colour: 0.003 Lux @ F1.6). When ambient light is absent, Smart IR (850 nm) extends detection to about 30 m and switches to B/W with 0 Lux with IR. For night-time perimeter or parking area coverage, this combination preserves more detail than standard low-light cameras.

With 120 dB true WDR the camera balances scenes with both bright and dark areas (for example a sunlit background and shaded foreground), making it well suited for entrances or locations with backlighting. 3D DNR (digital noise reduction) reduces sensor noise at slow shutter speeds, further improving low-light clarity and reducing storage requirements by producing cleaner compressible video.

The fixed 2.8 mm lens provides an approximate 111 horizontal field of view, ideal when you need wide coverage from a single mounted dome (e.g., building corners, small parking areas, store fronts). The compact dome (Ø121.4 mm × 92.2 mm, ~590 g) is unobtrusive and can be recessed under eaves or on walls and ceilings while maintaining IK10 vandal resistance for tamper-prone locations.

Support for H.265 / H.264 and their enhanced variants (H.265+/H.264+) reduces bandwidth and storage needs while preserving image quality. Multiple streams (main/sub/third) enable simultaneous recording at high resolution and efficient live viewing on mobile devices. Crucially, AcuSense analytics deliver human/vehicle classification, face capture and smart motion detection, which reduces nuisance alerts from animals, leaves or weather and helps prioritize responses.

Network connectivity is via a single RJ45 10/100 Mbps Ethernet port and the camera supports standard protocols including ONVIF for wide VMS compatibility as well as Hikvisions Hik-Connect and iVMS platforms. ISU/SU variants include a built-in microphone for on-board audio capture. Local storage via microSD (up to 256 GB), NAS (NFS/SMB) and ANR ensures continuous recording even during network interruptions.

Power options include PoE (802.3af, Class 3) and 12 VDC, with typical power consumption in the 67.5 W range. Weatherproofing (IP67) and vandal resistance (IK10) make this camera suitable for exposed outdoor locations. As always, installers should verify compatibility with regional safety and EMC regulations and follow local electrical codes when wiring.

Use cases and scenarios where this camera excels

• Retail exteriors and car park surveillance:4K detail combined with AcuSense reduces false alarms while providing the resolution needed to identify suspects or read registration plates at distance.
• Perimeter and entrance monitoring:The wide field of view and strong low-light performance make it suitable for monitoring entrances where lighting conditions change across the scene.
• Small-to-medium enterprise installations:Contractors and IT teams can integrate the camera with NVRs or existing VMS via ONVIF while leveraging PoE for simplified cabling.
• City or campus deployments:Rugged IP67 and IK10 ratings mean the camera can withstand weather and vandal attempts, making it appropriate for outdoor municipal or campus locations.
• Remote sites:Local microSD storage with ANR and efficient H.265+ compression reduce bandwidth and provide fallback recording if the network is lost.

Comparisons with similar products

In the crowded market for 4K dome cameras, the DS-2CD2186G2-ISU stands out on three fronts: low-light imaging (DarkFighter), on-board AI analytics (AcuSense) and a competitive price point. When comparing alternatives consider the following:

Many 4K cameras provide high resolution but struggle in low light; DarkFighter-equipped cameras maintain color and detail at lower lux, reducing reliance on artificial lighting or IR at short distances. For locations where night-time color detail matters (e.g., incidents in car parks), DarkFighter provides a meaningful advantage.

Cameras without deep-learning analytics typically generate more motion alarms from non-relevant events. AcuSense human/vehicle classification reduces false positives and saves time for security teams and storage by flagging only pertinent activity. For deployments with limited monitoring resources, analytics-enabled models can be more efficient.

Multisensor and PTZ cameras can cover larger areas or provide tracked zoom but are more expensive and complex. The DS-2CD2186G2-ISU is a straightforward, cost-effective option for wide coverage and high detail without the complexity or price of multi-sensor arrays or PTZ controls. For many retail or small campus applications, a network of 4K domes offers a better price-to-coverage ratio.

Customer testimonials and feedback

There are no verified individual customer reviews supplied with this product brief. Typical feedback from installers and end users deploying similar Hikvision AcuSense/DarkFighter cameras often highlights:

• "Clear night images with less reliance on flood lighting"  installers appreciate DarkFighter for low-light color retention.
• "Fewer false alarms"  security teams note a drop in nuisance alerts after enabling human/vehicle classification.
• "Easy integration with our NVR/VMS"  ONVIF support and Hikvision client tools simplify setup in mixed-brand environments.

For verified user reviews, consult authorised resellers or the product page and compare third-party review platforms and case studies from integrators who have deployed this model.

Conclusion: why choose the DS-2CD2186G2-ISU(2.8MM)(C)?

The DS-2CD2186G2-ISU(2.8MM)(C) delivers a compelling mix of 4K detail, advanced low-light performance and intelligent analytics at a price point that suits many small-to-medium commercial, retail and municipal projects. Its strengths are clear: DarkFighter imaging for low-light environments, AcuSense analytics to lower false alarms, robust outdoor protection (IP67/IK10), and flexible PoE power and storage options. Whether youre upgrading parking-lot coverage, securing retail perimeters, or building a reliable campus surveillance system, this camera provides high-resolution imagery and operational efficiencies that reduce bandwidth, storage and monitoring burden.

At the suggested retail price of USD 169.99, it represents a practical balance between capability and cost for projects that require both image clarity and intelligent event filtering. As with any security purchase, verify current stock and regional compliance markings (CE/UKCA where applicable), and confirm installation and power requirements with a qualified installer prior to deployment.

• Resolution: 8 MP (3840 × 2160)
• Lens: Fixed 2.8 mm, F1.6 (≈111 H FOV)
• Low-light: DarkFighter; Colour 0.003 Lux @ F1.6; B/W 0 Lux with IR
• IR range: Smart IR up to 30 m; WDR: 120 dB
• Analytics: AcuSense human/vehicle classification, face capture, smart motion
• Power: PoE (802.3af) / 12 VDC; typical ≈ 67.5 W
• Ingress/Vandal: IP67, IK10; local storage microSD up to 256 GB

If you need assistance comparing this model to other cameras for a specific site, or want help designing a multi-camera layout that maximises coverage with minimal hardware, consult a security integrator or reach out to authorised Hikvision resellers for datasheets, live demos and pricing availability.