Dahua N41BD42-W 4MP Wi-Fi Bullet IP Camera, 2.8mm Fixed Lens Dimensions


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Dahua Technology N41BD42-W 4MP Outdoor Wi-Fi Network Mini Dome Camera with Night Vision and 2.8mm Lens

  • 1/3-in. 4 MP Progressive-scan CMOS Sensor
  • 4MP (2560 × 1440) at 20 fps Maximum Resolution
  • 2.8 mm Fixed Lens
  • 2.4 GHz WiFi (IEEE802.11b/g/n), up to 80 m (262.48 ft) range
  • Smart H.265+ and Smart H.264+ Dual Codec
  • True Day/Night (ICR)
  • Smart Motion Detection
  • Maximum IR Distance 30 m (98 ft)
  • Built-in Microphone
  • IP67 Ingress Protection
  • Five-year Warranty



Dahua N41BD42-W 4MP Wi-Fi Bullet IP Camera, 2.8mm Fixed Lens Datasheet


Dahua N41BD42-W 4MP Wi-Fi Bullet IP Camera, 2.8mm Fixed Lens

The N41BD42-W offers high-resolution video and Wi-Fi connectivity in a compact and accessible package.

The N41BD42-W camera features Smart H.265+ video compression, reducing bandwidth and storage requirements without sacrificing video quality.

The camera’s elegant blend of aesthetics combined with a range of easy mounting solutions provides an excellent choice for a variety of small to mid-size applications at an affordable price.


A day/night mechanical IR cut filter makes this camera ideal for applications with fluctuating lighting conditions, delivering color images during the day and automatically switching to monochrome as the scene darkens.

Smart H.265+

Smart H.265+ is the optimized implementation of the H.265 codec that uses a scene-adaptive encoding strategy, dynamic GOP, dynamic ROI, flexible multi-frame reference structure and intelligent noise reduction to deliver high-quality video without straining the network. Smart H.265+ technology reduces bit rate and storage requirements by up to 70% when compared to standard H.265 video compression.

Smart Motion Detection (Human Detection Only)

Smart Motion Detection, a component of Dahua’s Analytics+ technology, improves alarm accuracy and decreases the number of false alarms. The advanced SMD algorithm analyzes a scene for human motion, while filtering out other motion due to trees, leaves, animals, weather, and triggers an alarm when detected.


Dahua N41BD42-W network cameras are equipped with a series of key cybersecurity technologies including: security authentication and authorization, access control, trusted protection, encrypted transmission, and encrypted storage. These technologies improve the camera’s ability to prevent malicious access and to protect data.


The Dahua ArcticPro Series of extreme-environment cameras combine temperature-tolerant components with a waterproof enclosure to ensure flawless operation in temperatures as low as –40°F (–40°C) without the need for an internal heater. The lack of a heater reduces the camera’s power consumption and saves operating costs. For applications that demand high-resolution video with advanced features in freezing environments, the Dahua ArcticPro Series offers a camera to satisfy the most demanding requirements.


The N41BD42-W camera allows for ±30% input voltage tolerance, suitable for the most unstable conditions for outdoor applications. Subjected and certified to rigorous dust and water immersion tests, the IP67 rating makes it suitable for demanding outdoor applications.

  • 1/3-in. 4 MP Progressive-scan CMOS Sensor
  • 4MP (2560 × 1440) at 20 fps Maximum Resolution
  • 2.8 mm Fixed Lens
  • 2.4 GHz Wi-Fi (IEEE802.11b/g/n), up to 80 m (262.47 ft) range
  • Smart H.265+ and Smart H.264+ Dual Codec
  • True Day/Night (ICR)
  • Smart Motion Detection
  • Maximum IR Distance 30 m (98.43 ft)
  • IP67 Ingress Protection



Image Sensor 1/3-in. 4 MP Progressive-scan CMOS
Max. Resolution 2560 (H) x 1440 (V)
RAM/ROM 64 MB / 16 MB
Scanning System Progressive
Electronic Shutter Speed Auto, Manual, 1/3 s to 1/100,000 s
Minimum Illumination Color (30 IRE): 0.03 lux at F2.0 B/W (30 IRE) : 0.003 lux at F2.0                        0 lux (IR on)
S/N Ratio > 56 dB
Illumination Distance Distance up to 30 m (98.43 ft)
Illuminator On/Off Control Auto, Manual, Off
Illuminator Number One (1) IR Light
Lens Type Fixed
Lens Mount M12
Focal Length 2.8 mm
Maximum Aperture F2.0
Angle of View Horizontal: 90°                               Vertical: 50°                                 Diagonal: 107°
Iris Type Fixed
Close Focus Distance 1.0 m (3.28 ft)
DORI1 Distance Lens Detect Observe Recognize Identify
2.8 mm 223.10 ft (68 m) 89.24 ft (27.2 m) 44.62 ft (13.6 m) 22.31 ft (6.8 m)
Installation Angle
Range Pan: 0° to 360°                                               Tilt: 0° to 90°                                 Rotation: 0° to 360°
Video Compression Smart H.265+, H.265, Smart H.264+, H.264, H.264B, H.264H
Stream Capability Two (2) Streams
Resolution 4MP (2560 × 1440), 3MP (2304 × 1296), 1080p (1920 × 1080), 1.3M(1280 × 960), 720p (1280 × 720), VGA (640 × 480), CIF (352 × 240)
Frame Rate Main Stream
2560 × 1440 at 20 fps
Sub Stream 640 × 480 at 20 fps
Bit Rate Control CBR, VBR
Video Bit Rate H.264: 24 kbps to 4096 kbps         H.265: 9 kbps to 4096 kbps
Day/Night Auto (ICR), Color, B/W
BLC Mode BLC, HLC, Digital WDR
White Balance Off, On (4 Zones, Rectangular)
Regional Custom Auto, Natural, Streetlamp, Outdoor, Manual, Regional Custom
Gain Control Auto, Gain Priority, Shutter Priority, Manual
Noise Reduction 3D NR
Motion Detection Off, On (4 Zones, Rectangular)
Region of Interest (ROI) Off, On (4 Zones)
Smart IR Support
Image Rotation 0°, 180°
Mirror Off, On
Built-in Microphone Yes
Network Port RJ-45 (10/100 Base-T)
Wi-Fi 2.4 GHz Wi-Fi (IEEE802.11b/g/n)
Wireless Range Up to 80 m (262.47 ft)
Network Protocol IPv4, HTTP, TCP, UDP, ARP, RTP, RTSP, RTCP, DHCP, DNS, NTP, Multicast
Interoperability ONVIF (Profile T, S, G), CGI, P2P, SDK, API
User/Host 6 Users (Total Bandwidth: 36 Mbps)
Edge Storage MicroSD Card (Maximum 256 GB)
Web Viewer IE, Chrome, Firefox
Management Software SmartPSS Lite, DMSS
Mobile Client iOS, Android
Cybersecurity Video Encryption, Configuration Encryption, Digest, WSSE, Account Lockout, Security Logs, Generating/Importing X.509 Certification, HTTPS, Trusted Boot, Trusted Execution, Trusted Upgrade
CE EN62368-1
Radio Equipment Directive (RED) Radio Equipment Directive 2014/53/EU
Electromagnetic Compatibility (EMC) Electromagnetic Compatibility Directive 2014/30/EU
FCC 47 CFR FCC Part 15, Subpart B         FCC PART 15C
Power Supply 12 VDC +30%
Power Consumption Basic: 2 W                                           Maximum (H.265 + IR Light): 4.1 W
Operating Temperature -40 °F (-40 °C) to 140 °F (60 °C) Less than or equal to 95% RH
Storage Temperature -30 °C to 70 °C (-22 °F to 158 °F)
Protection IP67
Casing Metal
Product Dimensions 166.2 mm × 70.0 mm × 128.6 mm (6.54 in. × 2.76 in. × 5.06 in.)
Net Weight 477.9 g (1.05 lb)
Gross Weight 696.5 g (1.54 lb)
Smart Motion Detection2 Differentiates between and  classifies humans Filters false alarms due to leaves, lights, animals, and other inconsequential objects. Extracts humans from recorded video for quick target search and retrieval.
Intelligent Video System Functions
IVS triggers an alarm and takes a defined action for the following events:
Standard Features Tampering with the camera.           Error writing to an onboard Micro SD card.                                                           Error sending or receiving data over the network.                        Unauthorized access to the camera.
Premium Features
Motion An object moves through any part of the scene.

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