Hikvision DS-2CD3667G3-LIZSUY/SL 6MP ColorVu 3.0 Varifocal Bullet Camera with Strobe Audible Warning

Model: DS-2CD3667G3-LIZSUY/SL

Who This Is For

When active deterrence at outdoor perimeters is the priority, the Hikvision DS-2CD3667G3-LIZSUY/SL delivers more than passive recording. This 6MP ColorVu 3.0 varifocal bullet camera combines full-colour night vision with a built-in strobe light and audible warning, allowing it to actively respond to intrusions rather than simply capture them. AcuSense AI classification reduces false triggers by separating human and vehicle movement from background noise - meaning the strobe and siren fire when they should, not at every passing cat or swaying branch. The motorised varifocal lens makes it well suited to sites where the camera position is fixed but the coverage angle needs to be dialled in after installation - entrances, loading areas, car parks, and yard perimeters where getting the field of view right from a ladder is not always practical. Smart Hybrid Light combines IR and white light, giving operators the choice of covert or illuminated night coverage depending on the site requirement.

What This Camera Actually Does

Who Buys This Model

• Industrial and Warehouse Site Managers: Sites with large outdoor yards, loading docks, or perimeter fencing where a camera that actively responds to after-hours intrusions is more valuable than one that passively records.
• Commercial Property Installers: Electricians and security integrators specifying deterrence-capable cameras for retail car parks, petrol stations, and commercial premises where AcuSense keeps false alarm rates manageable.
• Construction Site Operators: Temporary or semi-permanent installations on active construction sites where equipment theft is a recurring issue and a visible strobe and audible response provide an immediate deterrent.
• Rural and Semi-Rural Property Owners: Acreage and agricultural properties where long approach driveways and large open areas need a camera with a varifocal lens to cover distance and full-colour night vision to capture useful identification detail.

Honest Assessment

The DS-2CD3667G3-LIZSUY/SL does active deterrence well - the combination of AcuSense classification, strobe, and audible warning creates a genuinely responsive perimeter tool rather than a passive recorder. Full-colour night vision at 6MP means footage taken at night is actually usable for identification purposes, and the motorised varifocal removes the frustration of optical adjustment on hard-to-reach mounts. Smart Hybrid Light adds useful flexibility for sites where covert IR and visible white-light modes both have a role. Where this camera is not the right fit: if you need wide-angle overview coverage of a large indoor area, a fisheye or multi-sensor camera will give you fewer gaps with fewer units. If pan and tilt tracking of moving subjects across a wide zone is the requirement, a PTZ is more appropriate. This model is available through Security Australia and is best suited to fixed outdoor positions where directional coverage and active deterrence are the design brief.

Before You Buy

Quick Fit Check

• Good match if: You are covering an outdoor approach, entrance, or perimeter where you want the camera to actively respond to intruders - the combined strobe and audible warning triggered by AcuSense human/vehicle detection handles this without an additional siren device.
• Good match if: The camera mount position is fixed but the exact field of view needs to be refined after installation - the motorised varifocal lens allows optical zoom and focus adjustment remotely via the NVR interface without revisiting the mount.
• You may need a different model if: Your site requires continuous 180-degree or 360-degree coverage from a single mounting point - a panoramic or fisheye camera will provide that wide-area overview more efficiently than multiple fixed bullet cameras.

Key Features & Technical Specifications

Real-World Scenarios

How It Compares

• Choose this if: You need a single outdoor bullet camera that covers a fixed approach zone, produces full-colour night footage, and actively deters intruders with strobe and audible warning triggered by AI-classified human or vehicle detection.
• You may need a different model if: Your site requires tracking of moving subjects across a wide outdoor area - a PTZ camera with auto-tracking will follow a target across the full zone rather than covering a fixed field of view.
• Pairs well with: A PoE+ NVR with AcuSense-compatible event handling and sufficient per-port power output to support the active deterrence hardware in this camera.

Common Questions

1. Does the strobe and alarm fire automatically, or does someone need to trigger it manually?

   Both options are available. The strobe and audible warning can be configured to trigger automatically when AcuSense detects a classified human or vehicle target, or they can be triggered manually by an operator via the NVR or VMS interface. For unmanned sites, automatic trigger mode is the practical setup - the response fires in real time without requiring anyone to be watching the feed.

2. Will AcuSense reduce false alarms compared to standard motion detection?

   Yes, substantially. Standard motion detection triggers on any pixel change in the frame - a tree branch, a shadow, a passing insect. AcuSense classifies moving objects as human, vehicle, or other, and only fires alerts for human and vehicle targets. For outdoor bullet cameras covering open areas, this difference in false alarm rate is significant in day-to-day operation.

3. What is the difference between ColorVu 3.0 and standard IR night vision on this camera?

   ColorVu 3.0 produces full-colour footage in low-light conditions using a white-light supplement, while standard IR night vision produces grayscale footage. The practical difference is that with ColorVu 3.0 you can identify clothing colour, vehicle colour, and other colour-dependent details at night - information that is simply not available in a grayscale IR image. Smart Hybrid Light on this camera gives you both options: IR for covert monitoring and white light for full-colour capture.

4. Does this camera work with standard PoE switches and NVRs?

   It works with PoE network infrastructure, but the active deterrence hardware - strobe and speaker - draws more current than a standard passive bullet camera. PoE+ (IEEE 802.3at, up to 30W per port) is recommended over standard 802.3af (15.4W) to ensure stable operation. Check your NVR's per-port PoE output specification before installation. Many mid-range Hikvision NVRs with PoE+ ports will support this camera without issue.

5. How does the motorised varifocal lens help with installation compared to a fixed lens?

   A motorised varifocal lens allows zoom and focus to be adjusted remotely through the NVR or camera interface after the camera is physically mounted and cabled. With a fixed lens, getting the field of view wrong means repositioning the camera entirely. With a motorised varifocal, an installer can mount the camera, run cable, then fine-tune the coverage angle from ground level - a meaningful time saving on elevated or hard-to-access mounts.

6. Is this camera suitable for use as part of a monitored alarm response system?

   Yes, it is well suited to this application. AcuSense event outputs can be integrated with Hikvision-compatible monitoring platforms and alarm panels. When a human or vehicle detection event fires, the NVR can push an alert with a video clip to a monitoring centre - allowing operators to verify the event visually before dispatching a response. This verification step is what makes AcuSense classification valuable to monitoring stations over standard motion-triggered alerts. The DS-2CD3667G3-LIZSUY/SL is part of the Security Australia range and is stocked for this type of commercial integration use.

7. Will the white light from ColorVu 3.0 be intrusive at night in a residential or mixed-use setting?

   Potentially, yes. The white-light supplement required for full-colour night vision emits visible light - it is not invisible like IR. In Smart Hybrid Light mode the camera can be set to IR-only operation, which produces grayscale footage without any visible light emission. If full-colour night footage is required in a location sensitive to light output - near residences, on roads, or in areas governed by light spill regulations - this trade-off between colour detail and visible light emission is worth discussing with your installer before committing to white-light mode as the default.

Downloads & Resources

No downloads available for this product.