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MEGApix® 2.1 Megapixel Indoor/Outdoor Snapit™ Vandal Dome IP Camera
Model: DWC-MV421DB
MEGApix® IP cameras provide real-time 2.1MP, 1080p resolution at up to 30fps. The Snapit™ housing is easy to install and features CleanView™ dome treatment and Cold Start at -40º F/-40º C. All MEGApix® cameras are ONVIF conformant, assuring their successful integration with any open platform solution on the market.
  • DWC-MV421D

Motorized Zoom Auto-Focus Lens
An Auto Focus lens with motorized zoom removes the need for the complicated and detailed manual focus adjustment or zoom configurations at the camera. The motorized zoom module allows you to adjust the camera's view and zoom remotely, without the need to be near the camera. Then, the autofocus lens communicates with the camera to automatically determine what area of the camera’s FoV should be in focus.
CleanView™ Hydrophobic Dome Coating Repels Water, Dust and Grease
Digital Watchdog's new CleanView™ dome enclosures repel water and dust to maintain a camera's image quality. A technologically-advanced coating alleviates spotting and smudges that can affect the performance of the camera.

Click here to learn more about the CleanView™ process
Cold Start
Our upgraded Snapit™ and B4 models come with a heater built into the camera module. This heater helps the camera power up in extreme cold weather conditions where temperatures may go as low as -40°F. This makes the cameras ideal for any harsh environment installation.
Wide Dynamic Range (WDR)
Wide Dynamic Range technology mechanically allows capturing an entire scene in challenging lighting conditions. One shutter is set to a short exposure, capturing the bright areas in the FoV, while the other is set for a long exposure, capturing the dark areas in the FoV. The camera then interlaces the images and combines them, capturing both areas with no loss of detail. This allows for an image capture even when there are very bright and dark areas in the camera’s field of view or images are distorted by a strong backlight.
  • 2.1 Megapixel Image Sensor 
  • Real-time 1080p 30fps High Definition
  • 2.8~12mm Remote Auto Focus P-Iris Lens
  • Wide Dynamic Range (WDR)
  • Dual Codecs (H.264, MJPEG) with Simultaneous Streaming
  • Cold Start -40°F (-40°C)
  • CleanView™ Hydrophobic Dome Coating Repels Water, Dust and Grease
  • Snapit™ Easy Installation Housing
  • Smart DNR™ 3D Digital Noise Reduction
  • Programmable Privacy Zones
  • Auto Gain Control (AGC)
  • Auto White Balance (AWB)
  • Motion Detection
  • Micro SD/SDHC/SDXC Class 10 Card Slot for Event and Continuous Recording(Card Not Included)
  • Junction Box Built-in
  • Alarm Sensor Input
  • Relay Output
  • Web Server Built-in
  • PoE and DC12V
  • OnVIF Conformant, Profile S
  • IP68 Certified (Water and Tampering Resistant)
  • 5 Year Warranty


Image Sensor
1/2.7“ 2.1MP CMOS
Minimum Illumination
F1.4 (30IRE): 0.12 Lux [Color]
2.1 Megapixels, 1080P (1920x1080)
Total Pixels (H X V)
1928(H) X 1088(V)


Focal Length
Lens Type
P-Iris Auto Focus Lens
Optical Zoom
Field of View
106° ~ 32°


Audio Input/Output1/1
Audio CompressionG.711
Alarm Input/ Output1/1


5.47 x 4.8 Inch (139 x 121.8 mm)
Housing Material
Aluminum Housing, Polycarbonate Dome
Housing Type
Snapit Outdoor Dome
2.75 lbs (1.25kg)


Frame Rate
Up to 30fps at All Resolutions
802.3 Compliance 10/100 LAN
Maximum Simultaneous User Access
5 Simultaneous Users
OnVIF Conformant
SecurityPassword authentication, Multi-level user configuration
Memory Slot
Micro SD / SDHC / SDXC up to 128GB, Card not Included
Streaming Capability
Dual-Stream at Different Rates and Resolutions
Video Compression Type
H.264, MJPEG
ResolutionH.264: 1920x1080 ~ CIF
MJPEG: 1280x720 ~ CIF
Video Management Software
DW Spectrum™ IPVMS
Web Viewer
OS: Windows®, Mac® OS, Linux®
Browser: Internet Explorer®, Google Chrome®, Mozilla Firefox®, Safari®


Smart DNR™ 3D Digital Noise Reduction
Auto Gain Control
Alarm Notifications
Notifications Via E-mail, FTP Server or SD Card Recording
Day and Night
Auto, Day (Color), Night (B/W)
Shutter Mode
Auto, Manual, Anti-Flicker
Programmable Privacy Zones
4 Programmable Privacy Masks
Shutter Speed
Wide Dynamic Range
On, Off


Operating Humidity
Less than 90% (Non-Condensing)
Operating Temperature
-40°F ~ 122°F (-40°C ~ 50°C)
IP RatingIP68 Certified (Water and Tampering Resistant)
Power Consumption
Auto Focus Working MAX 7.5W, 625mA
DC 12V, PoE (IEEE802.3af Class 3)
MEGApix CaaS
DW Spectrum
MEGApix® 2.1MP 30X Pan Tilt Zoom Dome IP Camera
MEGApix® 2.1 Megapixel 20x Pan, Tilt, Zoom Flush Mount Indoor Dome IP Camera
MEGApix® 2.1 Megapixel 5x Pan, Tilt, Zoom Flush Mount Indoor Dome IP Camera
MEGApix® 2.1 Megapixel Indoor Box IP Camera
MEGApix® 2.1 Megapixel Indoor/Outdoor Bullet IP Camera with IR
MEGApix® 2.1 Megapixel Indoor/Outdoor Snapit™ Vandal Dome IP Camera
MEGApix® 2.1 Megapixel Indoor/Outdoor Snapit™ Vandal Dome IP Camera with IR
MEGApix® 2.1 Megapixel Indoor/Outdoor Snapit™ Vandal Dome IP Camera with IR
MEGApix® 2.1 Megapixel Snapit™ Indoor Dome IP Camera
MEGApix® 2.1 Megapixel Snapit™ Indoor Dome IP Camera
MEGApix® 2.1 Megapixel Snapit™ Indoor Dome IP Camera with IR
Converter Plate for Electronic Gang Box
Snapit™ Outdoor Dome Ceiling Mount Bracket
Snapit™ Outdoor Dome Flush Mount Bracket
Snapit™ Outdoor Dome Sunshield Cover
Snapit™ Outdoor Dome Wall Mount Bracket
White Converter Plate for Electronic Gang Box
Title Type Size Download
Camera Accessories Compatibility Chart pdf 3.80 MB
DW Tech Bulletin P-iris pdf 0.49 MB
DWC-MV421DB Datasheet pdf 1.68 MB
DWC-MV421D_TIR Manual pdf 2.18 MB
DWC-MV421D_TIR Quick Start Guide pdf 0.32 MB
MEGApix 1080p Snapit Outdoor A&E Specs doc 0.09 MB
MEGApix Series Brochure pdf 1.34 MB
MEGApix Series Presentation pptx 8.33 MB
MV421DB Quick Start Guide pdf 0.32 MB
Snapit Outdoor Cold Start Report pdf 0.18 MB
Title Type Version Compatibility Size Download
1st Gen MEGApix 1080p Firmware V2.1.6.0 zip V2.1.6.0 MEGApix 1080p 1st Generation Cameras with FW Starting with 2 9.08 MB
2nd Gen MEGApix 1080p Firmware vA1.1.2_20170901 zip vA1.1.2_20170901 MEGApix 1080p 2nd Generation Cameras with FW Starting with A 38.49 MB
Megapix Backup Viewer Ext. URL Backup Viewer N/A
DW IP Finder v4.3.15 zip v4.3.15 22.03 MB
Frequently asked questions
Q. Can I record to my camera as a stand-alone?
A. Yes, as long as the camera has an SD card slot available and an SD card no larger than 64GB. For further details on how to, please refer to your camera's manual.
Q. Can my camera be accessed remotetly?
A. Yes, the camera may be accessed remotely as long as the appropriate port forwarding rules have been created on the router. Please refer to your camera's manual.
Q. How can I locate cameras on my network?
A. To locate cameras on your local network you can use IP_Finder located on our website for download. Or you can also locate cameras using a 3rd party application such as ODM (ONVIF DEVICE MANAGER) available online.
Q. How can I upgrade the firmware to my cameras?
A. The camera's firmware can be updated via the Internet Explorer browser. Many of our DW cameras firmware can be updated with the latest DW IP_Finder located on our website for download. This software is only Windows-based applicable.
Q. Is there a DW application available to view my camera?
A. There is no application other than the Internet Explorer browser to view stand-alone DW cameras.
Q. My camera is blurry at night but clear in the day
  1. Check the lens cover for dirt, debris, scratches, smudges or residue
  2. Tilt camera away from or remove nearby reflective objects
  3. Make sure rubber gasket is present and correctly seated on lens
  4. Clean lens cover with water and dry microfiber cloth
Q. What are the default credentials for DW cameras?
A. The majority of our DW cameras have a default username and password of admin/admin. Please refer to your camera manual or the Quick Setup Guide.