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Hikvision DS-2CD23166G3-IS2UY/SL 2.8mm 16MP AcuSense DarkFighter Turret Camera

Hikvision DS-2CD23166G3-IS2UY/SL 2.8mm 16MP AcuSense DarkFighter Turret Camera

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DS-2CD23166G3-IS2UY/SL

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£ 279.99 Incl VAT
£ 279.99 Incl VAT
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VAT included. Free Next Working Day Delivery Items over £129.99.
  • FREE! Next Working Day Delivery - Purchases over £129.99 (Mon - Fri) order before 3pm*
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  • Genuine Hikvision UK Stock With a 3 Year Warranty.

Hikvision DS-2CD23166G3-IS2UY/SL 2.8mm 16MP AcuSense DarkFighter Turret IP Camera with Strobe & Audio Alarm

The Hikvision DS-2CD23166G3-IS2UY/SL 2.8mm is a premium 16 megapixel AcuSense fixed turret network camera designed for demanding residential, commercial and professional CCTV installations. Combining ultra-high-definition imaging with DarkFighter low-light technology, intelligent human and vehicle classification, active white strobe warning and built-in audible alarm, this camera provides advanced proactive security in a durable turret design.

With a maximum resolution of 4608 × 3456, the DS-2CD23166G3-IS2UY/SL delivers exceptionally detailed surveillance footage. Its 1/1.8" Progressive Scan CMOS sensor, F1.6 aperture and Powered by DarkFighter technology provide excellent image performance in challenging lighting conditions.

2.8mm Wide-Angle Lens

This version is fitted with a 2.8mm fixed lens, providing an approximately 94.5° horizontal field of view, 69.9° vertical field of view and 123.2° diagonal field of view.

The wide-angle 2.8mm lens makes this model particularly suitable for locations where broad scene coverage is required, including driveways, entrances, front gardens, retail areas, offices, warehouses and car parks.

16MP Ultra High Definition CCTV

The DS-2CD23166G3-IS2UY/SL records at resolutions up to 16 megapixels (4608 × 3456), delivering exceptional image detail across a wide surveillance area.

The 4:3 high-resolution image format also provides additional vertical scene coverage compared with many conventional widescreen CCTV cameras, making it particularly useful where both horizontal and vertical detail are important.

AcuSense Human & Vehicle Classification

Hikvision AcuSense technology uses deep-learning algorithms to identify and classify human and vehicle targets.

This helps reduce unnecessary alerts caused by irrelevant movement such as animals, vegetation or other environmental activity, allowing security operators to focus on events more likely to require attention.

Active White Strobe Light & Audible Warning

The /SL version features an integrated active white strobe light together with a built-in smart speaker for audible warnings.

When linked to supported intelligent events, the camera can provide an immediate visual and audible deterrent when suspicious activity is detected, helping discourage intruders before an incident develops.

Powered by DarkFighter

Hikvision's Powered by DarkFighter technology provides excellent low-light imaging and helps retain useful scene detail when ambient lighting is limited.

The camera can operate at illumination levels down to approximately 0.0008 Lux in colour at F1.6, while infrared illumination provides dependable monitoring in complete darkness.

Up to 40m Smart Supplement Light

Integrated supplementary lighting provides an illumination range of up to 40 metres, helping maintain useful surveillance coverage after dark.

Smart supplement light control helps optimise illumination according to the scene and target distance, reducing the risk of overexposing nearby subjects.

130 dB True WDR

The DS-2CD23166G3-IS2UY/SL incorporates 130 dB True Wide Dynamic Range, helping produce clearer images in difficult scenes containing strong contrasts between bright and dark areas.

This is particularly useful for entrances, doorways, loading areas and other locations affected by strong backlighting or changing light conditions.

Built-In Dual Microphones & Smart PA Speaker

An integrated arrayed dual-microphone system captures audio alongside the camera's video stream, providing additional context for recorded security events.

The built-in Smart PA speaker has a maximum output of 2W and can produce a sound pressure level of up to approximately 110 dB at 10cm, enabling powerful audible warnings and two-way audio functionality.

Intelligent Perimeter Protection

Advanced intelligent functions include line crossing detection, intrusion detection, region entrance detection and region exit detection.

These analytics can distinguish human and vehicle targets, helping improve alarm accuracy and reduce unnecessary event notifications.

Face Capture

The DS-2CD23166G3-IS2UY/SL supports face capture, adding an additional layer of intelligent video analytics for compatible CCTV systems.

Key Features

  • 16MP ultra-high-definition IP turret camera
  • 2.8mm fixed wide-angle lens
  • Approx. 94.5° horizontal field of view
  • Maximum resolution 4608 × 3456
  • 1/1.8" Progressive Scan CMOS image sensor
  • Hikvision AcuSense human and vehicle classification
  • Powered by DarkFighter low-light technology
  • Active white strobe light
  • Built-in Smart PA speaker
  • Arrayed dual built-in microphones
  • 130 dB True WDR
  • Supplement light range up to 40m
  • Smart Supplement Light
  • Face capture support
  • Line crossing and intrusion detection
  • Region entrance and region exit detection
  • Human and vehicle target filtering
  • H.265+ / H.265 / H.264+ / H.264 compression
  • Built-in microSD slot supporting up to 512GB
  • 1 alarm input and 1 alarm output
  • Audio input and audio output
  • PoE IEEE 802.3at support
  • IP67 weather resistance
  • IK10 impact protection
  • NEMA 4X anti-corrosion protection
  • Metal housing

Efficient H.265+ Compression

Support for H.265+ video compression helps reduce storage and bandwidth requirements while maintaining the image quality needed from a 16MP security camera.

This is particularly important in ultra-high-resolution CCTV systems where efficient storage use can have a significant impact on recording retention times.

Local microSD Recording up to 512GB

A built-in memory card slot supports microSD, microSDHC and microSDXC cards up to 512GB, allowing local edge recording directly within the camera.

Local storage can provide additional resilience alongside an NVR and can be useful in systems where edge recording or Automatic Network Replenishment is required.

IP67, IK10 & NEMA 4X Protection

The camera is designed for demanding indoor and outdoor CCTV installations with IP67 weather protection, helping protect the internal electronics from dust and water ingress.

It also provides IK10 impact resistance and NEMA 4X anti-corrosion protection, making the DS-2CD23166G3-IS2UY/SL particularly suitable for exposed or higher-risk installation locations.

PoE for Simple Installation

Support for IEEE 802.3at Power over Ethernet allows both power and network data to be supplied through a single Ethernet cable when connected to a compatible PoE NVR or network switch.

This simplifies installation and reduces the need for separate power cabling at the camera location.

Technical Specification

Manufacturer Hikvision
Model DS-2CD23166G3-IS2UY/SL
Camera Type Fixed Turret Network Camera
Resolution 16MP
Maximum Resolution 4608 × 3456
Image Sensor 1/1.8" Progressive Scan CMOS
Lens 2.8mm Fixed Lens
Horizontal Field of View Approx. 94.5°
Vertical Field of View Approx. 69.9°
Diagonal Field of View Approx. 123.2°
Aperture F1.6
Minimum Illumination 0.0008 Lux Colour / 0 Lux with IR
Supplement Light Range Up to 40m
Wide Dynamic Range 130 dB True WDR
Video Compression H.265+, H.265, H.264+, H.264, MJPEG
Built-In Microphone Arrayed Dual Microphone
Built-In Speaker Yes, Smart PA Speaker
Speaker Output Up to 2W
Strobe Light Active White Strobe Light
Alarm Input / Output 1 / 1
Local Storage microSD / microSDHC / microSDXC up to 512GB
Network Interface 1 × RJ45 Ethernet
PoE IEEE 802.3at, Class 4
Maximum Power Consumption Up to 18W
Weather Protection IP67
Impact Protection IK10
Anti-Corrosion Protection NEMA 4X
Material Metal Cover & Metal Main Body
Dimensions Ø 138.3 × 115.4mm
Weight Approx. 820g

Ideal for Wide-Angle Professional CCTV

The Hikvision DS-2CD23166G3-IS2UY/SL 2.8mm 16MP AcuSense Turret Camera is an excellent choice for installations requiring exceptional image detail, wide scene coverage, intelligent event detection and active deterrence.

It is particularly suitable for driveways, entrances, retail premises, offices, warehouses, schools, car parks, industrial sites and commercial properties.

With its 2.8mm wide-angle lens, 16MP resolution, AcuSense, DarkFighter, 130 dB WDR, up to 40m supplement light, dual microphones, Smart PA speaker and active white strobe warning, the DS-2CD23166G3-IS2UY/SL provides a powerful all-in-one IP CCTV solution.

Important: Availability and performance of intelligent functions can depend on firmware, camera configuration and compatibility with the connected NVR or surveillance system.

  • ✅ 3 Year Warranty on this item
  • ⚠️ Please note: This is a non returnable item if the security seal/seals are broken. Get in touch to see if this the right item for you.
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🚚 Delivery

Delivery Information:

DPD Next Day Delivery - Free Next Working Day Delivery - For Purchases over £129.99 (Mon - Fri) order before 3pm* purchases under cost £7.99.

*Please note: We cannot guarantee next day delivery or Saturday delivery due to the nature of couriers and possible delays. All items will be dispatched the same working day if ordered before 3pm.

↩️ Return Policy

Our Returns and Refunds Policy:

We hope that you are 100% Happy with your order, however, if there is an issue we’ve outlined some steps below to help...

Returns and Refunds Policy

We want you to be completely satisfied with your order, but if there’s an issue, we’ve outlined the steps below to assist you.

We’re always here to help resolve any problems that may arise. Please contact us by email at sales@bcedirect.co.uk. As a small, independent, family-run business, we take great pride in our customer service. Our business hours are 9 am – 5 pm on weekdays.

 

Damaged or Faulty Items

If your order arrives damaged or faulty, please contact us within 14 days of receipt to arrange a return and replacement.

Please note: An item is not considered faulty if you placed an order for an incorrect or incompatible product.

Faulty items will receive a return label to return the product. Once we receive and inspect the item (this can take a couple of days), we’ll dispatch a replacement via next-day delivery.

If the item is not found to be faulty upon inspection, our standard returns process will apply, or the item can be returned to you at your cost.

Please Note: Items cannot be deemed defective if the issue arises due to customer actions or incorrect installation (e.g. forgotten passwords or user errors).

Change of Mind or Incorrect Orders

If you’ve changed your mind or ordered the wrong item, don’t worry! Contact us within 14 days to arrange a return.

Returns will be arranged through DPD courier at a cost of £8.99, which will be deducted from your refund.

A 10% restocking fee will also be deducted from the refund total (excluding delivery). This fee helps cover repackaging and labour costs incurred during the return process.

Conditions for Returns:

Items must be unused, in the same condition as received, and returned in the original packaging, with seals intact.

If items are returned in an unsatisfactory condition (e.g., damaged during installation by the customer), we reserve the right to deduct up to 40% of the final selling price. Photos of the damage will be provided upon request.

Non-Refundable Items:

HIKVISION, DAHUA and UNV equipment with broken seals will not be accepted for return, as these are classified as used by the manufacturers and are security products that could have been tampered with.

Important Notes:

Serial numbers on electronic equipment will be verified against our records to prevent fraud.

Original shipping costs are non-refundable, unless the order was lost in transit.

Refund Process

Refunds will be processed through the original payment method unless you prefer a credit note. Please allow 72 hours from receipt of the returned item for the refund to be processed.

Most refunds are completed within 24 hours, but certain providers (e.g., PayPal credit or e-cheques) may take longer.

We’ll send you an email confirmation once your refund has been authorised. If there are delays, we recommend contacting your bank or payment provider directly.

Additional Notes

We are not responsible for any external labour costs incurred by the customer, especially if the fault arises from incorrect installation or user actions (e.g., forgotten passwords).

We’re committed to providing a positive shopping experience and resolving any issues that may arise. As a small business, we strive to ensure our policies are clear and fair, while also balancing the practical challenges involved in handling returns.

If you need further assistance, please don’t hesitate to contact us via email at sales@bcedirect.co.uk.

📈 Trade Pricing

Are you an Installer, Electrician or looking to get into the trade? Get in contact for bespoke pricing or call 01761452997

🤝 Need some help?

Please feel free to get in touch with our sales team. Use the contact us page - email sales@bcedirect.co.uk or give us a call on 01761 452997 we will be more than happy to chat through your requirements.

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We're an Independent family run business.

Please feel free to get in contact if you need any help or further information on any of our products, give us a call on 01761 452 997 we're here to help.

We only provide UK Hikvision products so you get full firmware updates and reliable kit.

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Hikvision FAQs

FAQ'S

Where are your products sourced?

We source all of our kit from Hikvision UK, this means there is a standard 3 year warranty and all firmware can be updated direct from the Hikvision UK and Ireland website. We do not sell grey market imports. These are usually around 20-30% cheaper than official products and can be very troublesome, often with english flashed firmware making it impossible to support if something goes wrong.

What is Acusense?

Here at BCE Direct we love the acusense feature, which is now available on most NVR, DVR or IP Cameras. This is where you can distinguish between a human, vehicle or animal. It's a built in algorithm that can detect the difference between the above and eliminate false notifications. The feature is so good it can exclude leaves birds or rain.

Darkfighter, Colorvu, Hybrid? What are their differences?

Colorvu in it's simplest form provides full colour throughout the night, these cameras use a small led on the front of the camera to illuminate an area that you are recording and provide full colour sharp images even in complete darkness. Darkfighter are black and white at night cameras and colour through the day but provide some of the clearest crisp images due to it's standard infrared light. Hybrid is a mix of the above, these relatively new cameras are more like a pir floodlight, where they use the acusense feature to identify humans or vehicles and turn the led lights on during the night, so infared (black and white) at night then full colour if something is detected.

Difference between NVR and DVR?

When it comes to video surveillance systems, one of the most important decisions you'll need to make is whether to choose a network video recorder (NVR) or a digital video recorder (DVR). While both options serve the same purpose of recording and storing surveillance footage, there are several key differences to consider when making your decision.

First, let's take a closer look at each option.

What is an NVR?

An NVR is a video recorder that records and stores footage from network cameras. It connects to the cameras via an IP network, allowing for high-quality video streaming and advanced features such as remote viewing and motion detection. The NVR records video footage directly onto a hard drive, with the option to add more storage space as needed.

What is a DVR?

A DVR, on the other hand, records and stores footage from analog cameras. It connects to the cameras via coaxial cables and records the video onto a hard drive. While traditional DVRs are limited to analog cameras, some modern DVRs can also work with IP cameras through the use of video encoders.

So, what are the key differences between NVRs and DVRs?

  1. Camera Compatibility

As mentioned above, NVRs work exclusively with IP cameras, while DVRs work with analog cameras. This means that if you already have an existing analog camera system, you will need to stick with a DVR. However, if you're starting from scratch or planning to upgrade your camera system, an NVR may be a better option due to its ability to work with high-resolution IP cameras.

  1. Video Quality

NVRs generally offer higher video quality than DVRs, as they are designed to work with IP cameras that can provide HD or even 4K resolution. DVRs, on the other hand, are limited to the resolution capabilities of analog cameras, which are typically lower than IP cameras.

  1. Remote Access

NVRs offer more advanced remote viewing capabilities than DVRs, as they are designed to be accessed remotely via an internet connection. This allows you to view live and recorded footage from anywhere with an internet connection, using a computer, smartphone, or tablet. While some DVRs do offer remote viewing capabilities, they are often limited in their functionality and require more setup.

  1. Cost

DVRs are generally less expensive than NVRs, due to their lower resolution capabilities and simpler technology. However, as the price of IP cameras continues to drop, the price difference between NVRs and DVRs is becoming less significant.

In conclusion, the choice between NVRs and DVRs largely depends on your specific needs and budget. If you're starting from scratch or upgrading your camera system, an NVR may be a better option due to its advanced features and compatibility with high-resolution IP cameras. However, if you already have an analog camera system, a DVR may be a more cost-effective solution. Whatever your choice, make sure to choose a reputable brand with a proven track record of quality and reliability.

What warranty do you provide?

We provide a standard 3 year warranty on all Hikvision kit.

What size hard drive do I need?

View our simple hard drive calculator to determine what size you need for your requirements.

POE/POC/AOC What's the difference?

🔵 POE (Power over Ethernet)

Definition:

  • Power over Ethernet (POE) allows both power and data to be transmitted over a single Ethernet cable (Cat5e, Cat6, etc.), eliminating the need for separate power cables.

Common Usage:

  • Used to power IP cameras, VoIP phones, wireless access points, network switches, and IoT devices.

Advantages:

  • Reduces the need for separate power outlets.
  • Simplifies installation and reduces cabling costs.
  • Centralises power management.

Limitations:

  • Limited power output (up to 90W with POE++).
  • Cable length is generally limited to 100 metres (328 feet).

Example Devices:

  • IP security cameras
  • Wireless access points
  • VoIP phones

🟢 POC (Power over Coax)

Definition:

  • Power over Coax (POC) uses coaxial cables to transmit both power and data/video signals. It is commonly used in legacy CCTV systems where coaxial cables are already in place.

Common Usage:

  • Primarily used in analog and HD analog CCTV systems (such as HD-TVI, HDCVI, AHD).
  • Useful for upgrading legacy systems without rewiring.

Advantages:

  • Utilises existing coaxial infrastructure, saving costs.
  • Supports longer cable runs compared to POE (up to 500 metres or more).
  • Provides both video and power over a single coax cable.

Limitations:

  • Less common in modern IP-based systems.
  • Not as flexible as Ethernet cabling for other data transmissions.

Example Devices:

  • HD analog security cameras (HDCVI, HD-TVI, AHD)
  • DVRs for legacy CCTV systems

🟠 AOC (Audio over Coax)

Definition:

  • Audio over Coax (AOC) allows audio signals to be transmitted alongside video signals through a single coaxial cable.

Common Usage:

  • Frequently used in surveillance systems where audio recording is required in addition to video.
  • Helps avoid running additional cables for microphones.

Advantages:

  • Simplifies cabling by combining video and audio in a single cable.
  • Ideal for CCTV systems that require audio monitoring.

Limitations:

  • Typically limited to analog or HD analog systems.
  • Not compatible with most IP-based systems.

Example Devices:

  • CCTV cameras with built-in microphones
  • DVRs with audio input

🧩 Key Differences:

AspectPOE (Power over Ethernet)POC (Power over Coax)AOC (Audio over Coax)Cable TypeEthernet (Cat5e, Cat6)Coaxial (RG59, RG6)Coaxial (RG59, RG6)Power TransmissionYesYesNoData/Signal TypeData (IP), PowerVideo, PowerVideo, AudioTypical Use CasesIP cameras, VoIP phones, Wi-Fi APsAnalog/HD analog cameras, legacy CCTVSurveillance systems with audio recordingCable Length LimitUp to 100m (328 ft)Up to 500m (1640 ft) or moreSimilar to POCCompatibilityModern IP-based systemsAnalog/HD analog systemsAnalog/HD analog systemsAdvantagesSimplifies power and data over EthernetUtilises existing coax cablesCombines video and audio in one cable

✅ Summary of Use Cases:

  • POE is best for modern IP-based systems that need data and power over a single Ethernet cable.
  • POC is ideal for upgrading analog CCTV systems using existing coax cables, providing both video and power.
  • AOC is useful for adding audio capabilities to coax-based surveillance systems.