Product Overview

The Hikvision DS-2DT8C442MXG-LWT is a professional 4MP anti-corrosion PTZ network speed dome designed for demanding surveillance environments where conventional CCTV cameras may be vulnerable to corrosion, salt, moisture or aggressive environmental conditions.

Built around a large 1/1.8-inch progressive scan CMOS sensor, DarkFighter low-light technology and a powerful 6-252mm motorised zoom lens, the camera provides 42× optical zoom for monitoring large sites and distant subjects. Hybrid supplementary lighting provides manufacturer-rated infrared illumination up to 500 metres together with white-light illumination up to 100 metres.

The specialist anti-corrosion polymer enclosure is rated IP67, while Hikvision specifies NEMA 4X and C5 anti-corrosion protection. Hikvision classifies this model at its top anti-corrosion protection level, with typical applications including coastlines, docks, ports, chemical plants and other locations where professional corrosion resistance is required.

This is an anti-corrosion surveillance camera. It should not be described as an explosion-proof or ATEX-certified camera unless separate certification for the exact product being supplied explicitly confirms that capability.

Key Features

• 4MP network PTZ speed dome camera
• Maximum resolution of 2560 × 1440
• Large 1/1.8-inch progressive scan CMOS sensor
• DarkFighter low-light technology
• 6-252mm motorised zoom lens
• 42× optical zoom
• 16× digital zoom
• Maximum F1.2 aperture
• Colour sensitivity down to 0.001 lux
• Hybrid supplementary illumination
• Infrared illumination up to 500m
• White-light illumination up to 100m
• Smart Supplement Light
• 120dB Wide Dynamic Range
• Optical defog
• Electronic Image Stabilisation with built-in gyroscope
• Human and vehicle classification for supported perimeter events
• Manual and automatic smart tracking
• 300 PTZ presets
• 360° pan movement
• -20° to 90° tilt with auto flip
• Up to 240°/s preset pan speed
• H.265+ video compression
• Three video streams
• microSD storage up to 256GB
• NAS and ANR support
• 7 alarm inputs and 2 alarm outputs
• External audio input and output
• RS-485
• Built-in wiper
• Anti-corrosion polymer enclosure
• NEMA 4X and C5 anti-corrosion protection
• IP67 environmental protection
• 6kV lightning protection
• Operation from -40°C to +70°C

4MP High-Definition Imaging

The DS-2DT8C442MXG-LWT uses a 1/1.8-inch progressive scan CMOS sensor and provides a maximum resolution of 2560 × 1440, delivering detailed 4MP video for professional long-range surveillance applications.

For 50Hz operation, suitable for UK installations, the main stream supports up to 25 frames per second at 2560 × 1440, 1920 × 1080, 1280 × 960 and 1280 × 720.

The large image sensor helps support strong low-light performance while the 4MP resolution provides additional image detail compared with conventional 2MP Full HD surveillance cameras.

42× Optical Zoom

A major feature of the DS-2DT8C442MXG-LWT is its powerful 42× optical zoom lens.

The motorised lens covers a focal-length range from 6mm at the wide end to 252mm at the telephoto end. Unlike digital enlargement, optical zoom physically changes the lens focal length, allowing distant subjects to occupy a larger proportion of the image while preserving the available optical detail.

Hikvision also provides up to 16× digital zoom for additional electronic enlargement when required.

The specified zoom time between the wide and telephoto positions is approximately 5.4 seconds.

Wide-to-Telephoto Viewing Angle

At the wide end of the lens, the camera provides approximately 58.8° horizontal, 34.6° vertical and 67.1° diagonal coverage.

At maximum telephoto zoom, the field of view narrows dramatically to approximately 1.97° horizontal, 1.12° vertical and 2.28° diagonal.

This wide zoom range allows the same PTZ camera to monitor a large overview and then concentrate on a much smaller distant area when required.

DarkFighter Low-Light Technology

Hikvision DarkFighter technology is designed to maintain useful surveillance imagery under very low ambient-light conditions.

The manufacturer specifies minimum illumination of approximately 0.001 lux in colour at F1.2 with AGC enabled and approximately 0.0005 lux in black-and-white mode, with 0 lux possible when infrared illumination is operating.

Low-light specifications are laboratory reference figures. Actual image performance depends on lighting, movement, atmospheric conditions, camera settings and the monitored scene.

Up to 500m Infrared Illumination

The integrated hybrid supplementary lighting system provides manufacturer-rated infrared illumination up to 500 metres.

This extended IR capability is intended for large-scale applications where conventional 30m, 50m or 100m CCTV illumination would be insufficient.

The 500m figure describes the rated infrared illumination distance. It should not be interpreted as guaranteed facial, vehicle-registration or evidential identification at 500 metres.

Up to 100m White-Light Illumination

In addition to infrared illumination, the camera provides white-light supplementation rated up to 100 metres.

White light can provide visible illumination when required by the surveillance application. Actual usable distance depends on scene conditions, zoom position, target reflectivity and installation environment.

Smart Supplement Light

Smart Supplement Light helps regulate supplementary illumination according to the monitored scene.

This can help manage excessive illumination when subjects move closer to the camera while still allowing extended illumination to be used for longer-distance monitoring.

Professional PTZ Movement

The camera provides continuous 360° pan movement together with a tilt range from -20° to 90° and automatic flip.

Manual pan speed can be configured from approximately 0.1° to 160° per second, while preset pan movement reaches up to approximately 240° per second.

Tilt movement can be configured from approximately 0.1° to 120° per second, with preset tilt speed up to approximately 200° per second.

300 Preset Positions

Up to 300 PTZ preset positions can be configured, allowing operators to quickly move the camera to previously defined areas of interest.

The camera also supports eight patrols with up to 32 presets per patrol, together with four pattern scans capable of recording more than ten minutes of PTZ movement for each pattern.

Power-Off Memory and Scheduled PTZ Tasks

Power-off memory allows the camera to recover relevant operating status after an interruption.

Supported PTZ actions include presets, patrol scans, pattern scans, auto scanning, tilt scanning, random scanning, frame scanning and panorama scanning.

Scheduled tasks can also be configured for supported PTZ and maintenance operations.

Automatic and Manual Smart Tracking

The DS-2DT8C442MXG-LWT supports both manual tracking and automatic smart tracking.

When correctly configured, automatic tracking allows the PTZ to follow a detected target through the monitored area.

Tracking performance depends on target size, scene complexity, visibility, lighting and configuration and should not be presented as infallible automatic tracking in every situation.

Human and Vehicle Perimeter Classification

The camera supports perimeter protection for line crossing, intrusion, region entrance and region exiting events.

For these supported functions, alarms can be filtered according to specified human and vehicle target types. This can help reduce irrelevant event notifications caused by other movement within the scene.

The exact datasheet does not list dedicated ANPR or facial-recognition capability for this model, so those functions should not be added to the product page.

Additional Smart Events

Additional event functions include unattended baggage detection, object-removal detection, audio exception detection, motion detection and video-tampering alarms.

Available event performance depends on correct configuration and the surveillance environment.

120dB Wide Dynamic Range

120dB Wide Dynamic Range helps retain usable detail when a scene contains both very bright and dark areas.

This can be useful around ports, industrial entrances, loading areas, roads and outdoor sites where sunlight, headlights and deep shadows may occur within the same image.

Optical Defog

The DS-2DT8C442MXG-LWT includes optical defog functionality designed to improve visibility in atmospheric conditions such as haze or mist.

Optical defog is particularly relevant for long-range surveillance because atmospheric conditions can have a significant effect on image clarity over large distances.

No camera can completely eliminate the physical effect of extremely dense fog or other atmospheric obstruction, so defog performance should be treated as an image-enhancement capability rather than a guarantee of visibility through all weather.

Electronic Image Stabilisation

Electronic Image Stabilisation is supported and is assisted by a built-in gyroscope.

This can help reduce visible movement caused by vibration or environmental conditions, which can be particularly useful on long-range PTZ installations where small physical movements become much more noticeable at high optical zoom levels.

H.265+ Video Compression

The main stream supports H.265+, H.265, H.264+ and H.264 compression.

H.265+ can help reduce bandwidth and storage requirements compared with less efficient recording configurations, depending on the resolution, frame rate, bit rate and activity within the scene.

The camera supports main, sub and third video streams for flexible recording and remote-viewing configurations.

microSD Storage up to 256GB

The built-in memory-card slot supports compatible microSD, microSDHC and microSDXC cards with capacities up to 256GB.

This means 256GB is the maximum supported removable-card capacity listed by Hikvision. It does not mean the camera contains 256GB of internal recording storage or that a memory card is included.

NAS, ANR and NVR Recording

Network storage through NAS using NFS or SMB/CIFS is supported together with Automatic Network Replenishment in compatible Hikvision surveillance configurations.

The camera can also be integrated with appropriately specified Hikvision recording and management systems. Compatibility should be checked against recorder bandwidth, resolution support, PTZ functions and smart-event requirements.

ONVIF and Hikvision Integration

The camera supports Open Network Video Interface Profiles S, G and T together with Hikvision ISUP, ISAPI and SDK integration.

HikCentral, iVMS-4200 and Hik-Connect are listed as supported client platforms.

10/100Mbps Ethernet

The DS-2DT8C442MXG-LWT provides one self-adaptive 10/100Mbps RJ45 Ethernet interface.

This is Fast Ethernet rather than Gigabit Ethernet. The camera should therefore not be described as having a 1000Mbps or Gigabit RJ45 network connection.

Seven Alarm Inputs and Two Outputs

The camera provides seven alarm inputs and two alarm outputs for integration with compatible external equipment.

These interfaces can be used within an appropriately designed surveillance and security system for event input and alarm linkage.

External Audio Input and Output

One line-level audio input and one line-level audio output are provided.

These are external audio interfaces. The exact datasheet does not specify a built-in microphone or built-in loudspeaker, so integrated two-way audio hardware should not be promised without separate equipment.

RS-485

A half-duplex RS-485 interface is provided with support for Hikvision, Pelco-P and Pelco-D control protocols.

This provides additional integration flexibility for compatible professional surveillance equipment.

Top-Level Anti-Corrosion Protection

One of the most important features of the DS-2DT8C442MXG-LWT is its specialist anti-corrosion design.

Hikvision classifies the model at its top anti-corrosion protection level, intended for locations where professional corrosion protection is required.

The manufacturer's listed typical applications include coastlines, docks and chemical plants. This makes the camera particularly relevant for ports, marine locations, industrial sites and other environments where salt or corrosive substances may shorten the service life of conventional surveillance equipment.

NEMA 4X and C5 Anti-Corrosion Protection

Hikvision lists the camera's anti-corrosion protection as NEMA 4X according to NEMA 250-2018 together with C5 corrosion protection.

These classifications support deployment in severe corrosive environments, but installation design, mounting hardware, cabling and accessories must also be suitable for the same environmental conditions.

Anti-Corrosion Polymer Enclosure

The camera uses a specialist anti-corrosion polymer enclosure rather than a conventional standard camera housing.

The enclosure is designed to improve reliability and longevity when the camera is exposed to corrosive environments.

IP67 Weather Protection

The exact manufacturer datasheet specifies an IP67 environmental protection rating.

IP67 provides strong protection against dust and water ingress under the relevant test conditions when the camera is correctly installed.

The product should not be listed as IP68 simply because other cameras within Hikvision's broader anti-corrosion range carry different environmental ratings.

6kV Lightning and Surge Protection

Hikvision specifies 6000V lightning protection together with surge and voltage-transient protection.

Built-in protection does not eliminate the need for correct grounding, bonding, surge protection and professional electrical installation, particularly on exposed industrial, coastal or long-distance installations.

Built-In Wiper

A built-in wiper is provided to help maintain a clearer viewing window during adverse weather and environmental conditions.

The wiper can be particularly valuable on coastal, industrial and exposed outdoor installations where rain, spray or other contamination may affect image visibility.

Wide -40°C to +70°C Operating Range

The DS-2DT8C442MXG-LWT is specified for operation from -40°C to +70°C with relative humidity up to 95%.

This wide environmental range supports professional deployment in challenging outdoor and industrial conditions when the complete installation meets Hikvision's requirements.

36V DC or 24V AC Power

The camera supports 36V DC ±25% or 24V AC ±25% power input, with maximum consumption of approximately 60W.

The exact datasheet does not list PoE, PoE+ or Hi-PoE as a power source. The camera should therefore not be advertised as being powered directly from an ordinary PoE network switch.

Technical Specifications

DORI Planning Distances

At the telephoto position, Hikvision publishes DORI planning references of approximately 3475.9 metres for detection, 1379.3 metres for observation, 695.2 metres for recognition and 347.6 metres for identification.

These figures are calculated using EN 62676-4 pixel-density criteria. They are planning references and must not be interpreted as guaranteed evidential identification distances. Real-world results are affected by weather, atmospheric turbulence, lighting, movement, installation height, camera angle, target size and system configuration.

Recommended Applications

The Hikvision DS-2DT8C442MXG-LWT is designed for demanding professional surveillance applications including coastlines, ports, docks, harbours, chemical plants, industrial sites, rivers, forests, roads, railways, airports, public squares, parks, stations and large outdoor venues.

Its specialist polymer anti-corrosion construction makes it particularly valuable where ordinary CCTV camera housings may experience accelerated deterioration due to salt, moisture or corrosive contaminants.

The 42× optical zoom and long-range hybrid illumination also make it suitable for sites where operators need both broad PTZ coverage and the ability to inspect distant areas.

UK-Wide Hikvision Specialist CCTV Supply

We supply Hikvision professional PTZ cameras, anti-corrosion CCTV equipment, network cameras, NVRs and specialist security products throughout the United Kingdom. Our nationwide service supports businesses, industrial operators, infrastructure sites and professional security installers across England, Scotland, Wales and Northern Ireland, covering cities, towns, ports, commercial areas and remote locations throughout the UK.

Our Hikvision surveillance equipment is supplied across London, Birmingham, Manchester, Liverpool, Leeds, Sheffield, Bristol, Newcastle, Nottingham, Leicester, Coventry, Derby, Bradford, Huddersfield, Halifax, Wakefield, Preston, Blackburn, Burnley, Nelson, Accrington, Colne, Clitheroe, Bolton, Bury, Rochdale, Oldham, Stockport, Wigan, Warrington, Lancaster, Blackpool, Chester, Hull, Grimsby, Southampton, Portsmouth, Plymouth, Cardiff, Swansea, Glasgow, Edinburgh, Aberdeen, Dundee, Belfast and surrounding areas, with nationwide supply extending to coastal, industrial and commercial sites throughout the UK.