Product Overview
Commercial perimeters, industrial yards and high-risk outdoor entrances demand more than passive recording, and the DS-2CD3687G3-LIZSUY/SL-BLK is built to meet that brief directly. This 8MP Ultra Series motorised bullet camera from Hikvision combines DarkFighter 2.0 low-light technology with a fast F1.2 aperture and a 2.7-13.5mm motorised varifocal lens, giving installers flexible scene framing across wide or long-range outdoor approaches without manual focus adjustments. Featuring smart dual illumination, the camera switches intelligently between 60m IR and white-light modes to support both discreet night monitoring and full-colour imaging when events are detected. It also integrates a high-intensity strobe, built-in loudspeaker and two-way audio for active deterrence, supported by AI analytics covering person and vehicle classification, face capture and people counting. Built with IP67 weather protection, IK10 vandal resistance and an anti-corrosion housing option, the DS-2CD3687G3-LIZSUY/SL-BLK is well suited to warehouses, loading docks, car parks and exposed commercial sites.
Key Capabilities
8MP 4K UHD Imaging
At 3840 x 2160 resolution, the camera captures enough detail to support identification of individuals and vehicles at distance, making footage useful for incident review and evidential purposes on large outdoor sites.
DarkFighter 2.0 with F1.2 Aperture
The large F1.2 aperture combined with DarkFighter 2.0 technology allows the camera to produce bright, detailed imaging in very low ambient light, reducing dependency on constant white-light illumination during night-time monitoring.
Motorised 2.7-13.5mm Varifocal Lens
The motorised varifocal lens covers a field of view from approximately 112 degrees wide to 41 degrees tele. Installers can frame scenes remotely without physical lens changes, saving time on elevated or hard-to-access mounting positions.
Smart Dual Illumination up to 60m
Integrated IR and white-light LEDs switch intelligently based on scene conditions. Operators can configure discreet IR-only monitoring as a default, with white light activating on detection events to produce full-colour imagery at up to approximately 60 metres.
Active Deterrence: Strobe, Speaker and Two-Way Audio
A built-in high-intensity strobe and loudspeaker allow immediate visual and audible deterrence when intrusions are detected. Two-way audio lets operators communicate directly with individuals on site, enabling real-time intervention before situations escalate.
AI Analytics: Classification, Face Capture and Counting
Deep-learning algorithms distinguish people and vehicles from irrelevant motion sources. Face capture and people counting extend the camera’s usefulness beyond perimeter alerts, supporting access management and occupancy monitoring at key chokepoints.
Best For
- Industrial Yards and Warehouses: The 8MP motorised bullet delivers directional long-range coverage across open yards, with the 2.7-13.5mm lens allowing precise framing of entry points, fence lines and loading zones.
- Commercial Perimeters Requiring Active Deterrence: The strobe, loudspeaker and two-way audio allow security teams to respond to perimeter breaches in real time rather than simply recording them.
- Car Parks and Transit Approaches: DarkFighter 2.0 and smart dual illumination maintain strong image quality in the variable lighting conditions typical of overnight car parks and driveway approaches.
- Coastal and Corrosion-Prone Environments: The anti-corrosion housing option in the “-Y” variant extends service life in salt-air or high-humidity industrial environments without compromising IP67 or IK10 ratings.
- High-Traffic Entrances Needing Analytics: Face capture and person/vehicle classification make this camera suitable for monitored access points where accuracy of event alerts matters as much as image resolution.
Why Choose the DS-2CD3687G3-LIZSUY/SL-BLK
The DS-2CD3687G3-LIZSUY/SL-BLK occupies a different tier from a standard outdoor bullet camera by stacking multiple active capabilities into a single housing. The F1.2 aperture and DarkFighter 2.0 engine handle genuinely low-light outdoor scenes without constant white illumination, while the motorised lens removes the need for manual refocusing after mounting. Most importantly, the combination of strobe, loudspeaker and two-way audio turns this camera from a passive recorder into a tool that can actively interrupt events as they unfold. The AI analytics layer filters person and vehicle targets away from nuisance triggers, keeping operators focused on real activity. Finished in a black housing for unobtrusive placement on dark facades and cladding, and rated IP67/IK10 for harsh outdoor conditions, this camera is available through Security Wholesalers as part of the Hikvision Ultra Series range.
Buyer Decision Tips
Motorised Lens vs Fixed Lens: The 2.7-13.5mm motorised varifocal gives this camera a 5x zoom range that suits installations where the mounting position is fixed but the scene coverage requirement is uncertain at the time of install. If you are mounting at a fixed height covering a defined corridor or entry point where the field of view is already known, a fixed-lens bullet will cost less and perform comparably. Choose the motorised variant when installers need the ability to refine framing after commissioning or where remote adjustment is expected across a multi-site deployment.
Anti-Corrosion Housing Consideration: The “-Y” suffix on this model indicates the anti-corrosion coating is included. If the installation site is within 1-2 kilometres of a coastline, near chemical storage, or in a high-humidity industrial environment, this coating is a meaningful specification rather than a marketing claim. It extends the expected service life of the housing and internal components in conditions that would accelerate corrosion on a standard outdoor-rated camera.
Key Features & Technical Specifications
| Resolution |
8MP (3840 x 2160) |
| Image Sensor |
DarkFighter 2.0 |
| Lens Type |
Motorised Varifocal |
| Focal Length |
2.7-13.5mm |
| Aperture |
F1.2 |
| Field of View |
Approximately 112 degrees (wide) to 41 degrees (tele) |
| Illumination Type |
Smart Dual Illumination: IR and White Light |
| Illumination Range |
Up to approximately 60m (IR and White Light) |
| Active Deterrence |
Built-in strobe light and loudspeaker |
| Two-Way Audio |
Yes – built-in microphone and speaker |
| AI Analytics |
Person and vehicle classification, face capture, people counting |
| Weather Protection |
IP67 |
| Vandal Resistance |
IK10 |
| Anti-Corrosion Housing |
Yes (“-Y” suffix) |
| Housing Colour |
Black |
| Series |
Hikvision Ultra Series |
Ideal Use Cases
Warehouse Perimeters
The motorised 2.7-13.5mm lens lets installers cover long external walls and fence approaches from a single mounting point, with the strobe and loudspeaker providing immediate deterrence if the AI detects an unauthorised person after hours.
Loading Docks and Yard Gates
8MP resolution at the tele end of the varifocal range supports vehicle identification at distance, while face capture at entry gates adds a layer of analytics useful for access logging and post-incident review.
Open-Air Car Parks
DarkFighter 2.0 and the F1.2 aperture maintain useful image quality in the patchy artificial lighting of car parks overnight, while the smart illumination system can trigger white light on detection rather than running it continuously.
Industrial Facility Entrances
The IK10 vandal resistance and IP67 weather rating make this camera suitable for exposed facility entrances where cameras are vulnerable to physical impact or sustained weather exposure, and the black housing suits darker facade materials.
Coastal and High-Humidity Sites
The anti-corrosion housing option built into the “-Y” variant directly addresses installations near coastlines or in chemical environments where standard outdoor-rated housings deteriorate prematurely, extending the camera’s service life in those conditions.
Choosing the Right Model
- Choose this model if: Your installation requires a combination of 4K resolution, motorised framing flexibility, active deterrence with strobe and two-way audio, and AI analytics in a single outdoor bullet housing. It is particularly well suited to commercial or industrial sites where the camera needs to respond to events, not just record them.
- Choose a different model if: The installation site is indoors or in a low-vandal-risk environment where a dome or turret form factor would be more appropriate and cost-effective. If active deterrence is not a requirement and the budget is constrained, a fixed-lens outdoor bullet with standard IR will cover basic perimeter recording at a lower price point.
- Choose a different model if: You need pan-tilt-zoom capability to track moving subjects across a wide open area. A motorised varifocal lens on a fixed bullet allows scene framing at install time but does not provide live PTZ tracking during operation.
FAQs
- What does DarkFighter 2.0 actually mean for outdoor night performance?
DarkFighter 2.0 refers to Hikvision’s enhanced low-light sensor and processing pipeline. Combined with the F1.2 aperture on this model, it allows the camera to produce detailed, usable images in very low ambient light conditions, including car parks and perimeters with minimal artificial lighting, without requiring the white-light illuminator to be running continuously.
- Can the camera be configured to use IR only and switch to white light on detection?
Yes. The smart dual illumination system on the DS-2CD3687G3-LIZSUY/SL-BLK supports intelligent switching between IR and white-light modes. Operators can configure it to remain in discreet IR mode by default and activate white-light illumination only when a detection event occurs, which provides full-colour imagery without constant white-light output.
- Does the motorised lens allow remote focus adjustment after installation?
Yes. The motorised varifocal mechanism supports remote zoom and focus adjustment through compatible Hikvision software such as iVMS-4200 or HikCentral. This means installers can finalise scene framing from ground level or a control room after the camera is physically mounted, which is a practical advantage on elevated or difficult-to-access positions.
- Is two-way audio built in or does it require an external microphone?
Both the microphone and loudspeaker are built into this camera. Two-way audio is available out of the box without external accessories. The built-in loudspeaker also drives the active deterrence alarm function, so the same hardware serves both communication and deterrence roles.
- What does the “-Y” in the SKU indicate?
The “-Y” suffix indicates the camera includes an anti-corrosion housing treatment. This is specifically relevant for installations in coastal areas, high-humidity environments, or near chemical storage, where standard outdoor-rated housings may deteriorate over time. It does not affect the camera’s core imaging or detection specifications.
- Is this camera suitable for wall-mounting on an outdoor pole or bracket?
Yes. The bullet housing is designed for directional wall or ceiling mounting, and Hikvision compatible pole mount brackets are available separately. Security Wholesalers stocks compatible bracket accessories for this camera series, including the DS-1275ZJ-S-SUS and DS-1275ZJ-SUS pole mount options.
- How does the AI classification reduce unwanted alerts?
The deep-learning engine on this camera is trained to distinguish people and vehicles from common false-trigger sources such as tree movement, small animals or lighting changes. By filtering alerts to only confirmed human or vehicle targets, the camera reduces the volume of irrelevant notifications operators need to respond to, which is particularly important on large sites with high environmental motion.
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