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White dome security camera with 2.8 mm lens

ARECONT VISION

ARECONT VISION AV20275DN-28 20MP 2.8MM CMOS Dome Camera

SKU CH-K5JY-QS8N4

A 20 megapixel dome camera with a 2.8 mm fixed lens and four 5MP CMOS sensors for wide-area surveillance

  • TypeSurveillance System / Security Camera Kit
  • 20MP resolution captures fine detail across wide areas
  • 8mm fixed lens provides broad field of view
  • Four 5MP CMOS sensors combine for high-definition imaging
  • 1024 motion detection zones enable precise real-time alerts
  • Weather-resistant dome housing withstands outdoor conditions

20MP Dome Camera for Surveillance

The Arecont Vision AV20275DN-28 is a 20 megapixel dome camera built for security installations that need wide coverage. It uses four 5MP CMOS sensors behind a fixed 2.8 mm lens to capture a broad field of view. The weather resistant housing supports outdoor mounting. Buyers who need varifocal zoom or longer focal lengths should consider other models.

Sustained Operation with Real-Time Motion Zones

Under continuous recording the camera applies M-JPEG compression to manage bandwidth across four sensor streams. Real-time motion detection monitors 1024 configurable zones without dropping frames during extended sessions. Auto gain control adjusts exposure dynamically as lighting shifts through day and night cycles. The fixed aperture maintains consistent depth of field throughout prolonged use.

Fixed Optics and Compression Constraints

The 2.8 mm focal length cannot be changed after installation, so the viewing angle is set at deployment. M-JPEG compression produces larger files than modern codecs, which limits retention time on a given storage volume. The 1/3 inch sensor size restricts low-light sensitivity compared to larger formats. Installations requiring optical zoom or higher compression efficiency will need a different camera design.

Highlights

  • 20MP resolution captures fine detail across wide areas
  • 8mm fixed lens provides broad field of view
  • Four 5MP CMOS sensors combine for high-definition imaging
  • 1024 motion detection zones enable precise real-time alerts
  • Weather-resistant dome housing withstands outdoor conditions

Specifications

TypeSurveillance System / Security Camera Kit

Questions about this item

How much heat does the 20MP dome camera generate during 24/7 operation?

The camera is weather resistant and designed for continuous surveillance use.

What network equipment must I already have to power and record the AV20275DN-28?

You need a PoE switch or injector plus a network video recorder or VMS that accepts the camera stream.

Will this 2.8 mm lens dome camera integrate with my existing 1080p NVR?

The 20 megapixel stream can be recorded by any NVR or VMS that supports the camera's resolution and compression.

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