Dahua N42DJS2 4MP Smart Hybrid Light AI Turret Security Camera – 2.8mm, 30m IR & 120dB WDR

The Dahua N42DJS2 4MP Smart Hybrid Light AI Turret Camera is a professional security camera designed for residential and commercial surveillance installations.

Featuring a 1/3-inch 4MP progressive-scan CMOS sensor, 2.8mm fixed lens, Smart Dual Illumination, AI perimeter protection, smart motion detection and 120dB True WDR, this camera provides detailed monitoring in a variety of lighting conditions.

Its 30-metre infrared night vision, Smart H.265+ compression and IP67 weather-resistant housing make it suitable for entrances, driveways, offices, retail stores, warehouses and outdoor security applications.

Key Features

• 4MP High-Definition Video: Captures detailed surveillance footage at up to 20 frames per second.
• 1/3-Inch Progressive-Scan CMOS Sensor: Provides high-resolution video capture.
• 2.8mm Fixed Lens: Suitable for monitoring entrances and general surveillance areas.
• Smart Hybrid Light: Combines infrared and white-light illumination.
• 30m IR Night Vision: Smart IR illumination up to 30 metres (98.43 feet).
• AI Perimeter Protection: Supports intelligent perimeter monitoring.
• Smart Motion Detection: Helps identify relevant motion events.
• Analytics+: Advanced intelligent video analytics functionality.
• 120dB True WDR: Helps balance bright and dark areas within the same scene.
• Day/Night ICR: Automatic infrared-cut filter operation.
• Smart H.265+ Compression: Helps optimize video storage and bandwidth.
• Smart H.264+ Compression: Supports an additional efficient video encoding option.
• Dual-Stream Encoding: Supports two video streams for compatible recording and viewing configurations.
• Intelligent Video System: Supports additional intelligent video functionality.
• IP67 Protection: Designed for indoor and outdoor environments.
• Five-Year Warranty: Supplier-listed warranty term.

4MP High-Definition Video Resolution

The Dahua N42DJS2 features a 4MP progressive-scan CMOS image sensor for detailed video monitoring.

The camera supports a maximum frame rate of 20 fps at 4MP resolution.

This makes it suitable for monitoring property entrances, commercial premises and other security-sensitive areas.

2.8mm Fixed Lens

The camera includes a 2.8mm fixed-focal lens, commonly used for general surveillance applications.

It is suitable for monitoring areas such as:

• Front entrances
• Driveways
• Retail store interiors
• Office entrances
• Hallways
• Building exteriors

The exact horizontal and vertical viewing angles should be confirmed against the manufacturer’s specifications.

Smart Hybrid Light – Infrared and White Light

The Dahua N42DJS2 features Smart Dual Illumination, combining infrared and white-light illumination.

This provides flexible nighttime monitoring through supported lighting modes.

Infrared illumination allows the camera to capture nighttime footage without relying on visible white light.

White-light illumination can provide additional visible lighting for supported nighttime recording modes.

The available illumination modes and switching behaviour depend on camera configuration.

30m Smart IR Night Vision

The camera features Smart IR illumination with a maximum specified range of 30 metres (98.43 feet).

Smart IR technology helps manage infrared illumination to improve nighttime image visibility.

Actual nighttime performance depends on camera positioning, environmental conditions and the monitored scene.

Analytics+ AI Perimeter Protection

The Dahua N42DJS2 supports Analytics+ perimeter protection.

This intelligent monitoring functionality can help identify supported events occurring within configured security areas.

It is useful for monitoring building entrances, restricted areas and property boundaries.

Available detection rules and classification capabilities should be confirmed against the exact model’s technical documentation.

Smart Motion Detection

The camera supports Smart Motion Detection to help identify relevant activity within the monitored area.

Compared with basic motion detection, intelligent motion analysis can improve the usefulness of security events when properly configured.

The supplier does not specify the exact smart motion detection version.

120dB True Wide Dynamic Range

The Dahua N42DJS2 features 120dB True WDR.

Wide Dynamic Range helps balance exposure in scenes containing both bright and dark areas.

This can improve visibility in challenging lighting conditions such as:

• Building entrances with strong outdoor sunlight
• Reception areas
• Storefront windows
• Covered parking entrances
• Areas with strong backlighting

Day/Night ICR Technology

The camera supports Day/Night operation with an infrared-cut filter (ICR).

This allows the camera to adjust its imaging operation for daytime and nighttime monitoring.

The available day/night settings depend on the camera configuration.

Smart H.265+ and Smart H.264+ Video Compression

The camera supports:

• Smart H.265+
• Smart H.264+

These compression technologies help manage video storage requirements and network bandwidth.

Actual storage efficiency depends on video settings, scene activity and recording equipment.

Dual-Stream Video Encoding

The Dahua N42DJS2 supports dual-stream encoding.

This allows compatible systems to use separate video streams for different recording or viewing requirements.

For example, a higher-quality stream may be used for recording while another stream is configured for compatible remote viewing applications.

IP67 Weather-Resistant Design

The camera features IP67 ingress protection.

This rating indicates protection against dust and water ingress under specified testing conditions.

It is suitable for many indoor and outdoor security installations.

Proper weatherproof cable connections and mounting practices are recommended.

Five-Year Warranty

The supplier lists a five-year warranty for the Dahua N42DJS2.

Warranty coverage, exclusions, eligibility and claim procedures should be confirmed with the supplier before publishing a customer-facing warranty commitment.

Technical Specifications

Specification	Details
Brand	Dahua
Model	N42DJS2
Product Type	AI Turret Security Camera
Camera Resolution	4MP
Image Sensor	1/3-inch Progressive-Scan CMOS
Maximum Frame Rate	4MP at 20 fps
Lens	2.8mm Fixed
Illumination Technology	Smart Dual Illumination
Infrared Illumination	Supported
White-Light Illumination	Supported
Maximum IR Distance	30m / 98.43ft
Smart IR	Supported
AI Analytics	Analytics+
Perimeter Protection	Supported
Smart Motion Detection	Supported
Intelligent Video System	Supported
Wide Dynamic Range	True WDR, 120dB
Day/Night	ICR
Video Compression	Smart H.265+, Smart H.264+
Video Streaming	Dual Stream
Weatherproof Rating	IP67
Supplier-Listed Warranty	5 Years
Horizontal Viewing Angle	Not Specified
Built-In Microphone	Not Confirmed
Two-Way Audio	Not Confirmed
Power Requirements	Not Specified
PoE Support	Not Confirmed
MicroSD Card Support	Not Confirmed
Dimensions	Not Specified
Weight	Not Specified

Ideal Applications

The Dahua N42DJS2 is suitable for:

• Residential security systems
• Retail stores
• Office buildings
• Warehouses
• Building entrances
• Driveways
• Parking areas
• Commercial premises
• Indoor and outdoor surveillance installations

Installation and Compatibility Notes

• Confirm compatibility with the intended NVR or recording software.
• Verify power requirements and PoE support before installation.
• Confirm the viewing angle for the 2.8mm lens.
• Smart Hybrid Light behaviour depends on camera configuration.
• Verify supported Analytics+ detection rules.
• Confirm whether audio recording is available.
• Use properly weatherproofed cable connections for outdoor installations.
• Confirm warranty terms with the supplier.

Buy Dahua N42DJS2 4MP AI Turret Camera in Canada

Shop the Dahua N42DJS2 4MP Smart Hybrid Light AI Turret Security Camera at Tech Vision Electronics.

We supply Dahua IP security cameras, network video recorders, PoE switches, surveillance hard drives and professional security system accessories for residential and commercial installations.

Visit our Scarborough store, serving Toronto, Mississauga, Brampton, Markham, Pickering and customers across Canada.

Tech Vision Electronics
1261 Kennedy Road, Unit 4
Scarborough, Ontario M1P 2L4
Phone: 416-551-7334
Website: www.techvisionelectronics.com