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White outdoor dome camera with clear bubble and black base, RJ45 pigtail visible

ACTi

ACTi A820 4MP 5x Outdoor Zoom Dome network camera

SKU CH-VK2R-MVAA3 MPN A820

4 MP outdoor zoom dome with 5× optical zoom, 85 m IR night vision and 150 dB WDR

  • Highest resolution2688 × 1520
  • Port countEthernet Port: 1 x Ethernet (10/100 Base-T), RJ-45 pigtail c
  • Mounting optionsOutdoor
  • Network protocolsIPv4, IPv6, TCP, UDP, DHCP, PPPoE, HTTP, HTTPS, DNS, DDNS, N
  • PTZ capabilityPan: 0°-355°, Tilt: 0°-75°, Rotation: 0°-355°
  • Sensor typeCMOS

Model A820

  • 4MP resolution captures fine detail at 2688 x 1520
  • 5x optical zoom brings distant subjects closer
  • Deep Learning AI classifies objects to reduce false alerts
  • IR LEDs illuminate up to 85m for clear night video
  • Extreme WDR 150dB balances bright and dark areas

Outdoor dome with 5x zoom and AI analytics

The ACTi A820 is a 4 MP outdoor dome camera that combines a 5x optical zoom lens with on-board Deep Learning AI for object detection and classification. It targets installers and security managers who need motorised pan, tilt and rotation plus long-range infrared illumination in a single weather-resistant housing. The camera streams up to 2688 x 1520 at 30 fps using H.265 Adaptive Stream, H.264 Adaptive Stream or MJPEG compression with simultaneous quad-stream support.

10/100 Ethernet limits bandwidth and cable reach

Video and control traffic share a single 10/100 Base-T port on an RJ-45 pigtail, capping throughput at 100 Mbps and restricting PoE power to Class 3 levels. The 100-metre twisted-pair limit applies unless intermediate switches or fibre converters are deployed, and the 12.5 W PoE draw leaves minimal headroom for additional powered devices on the same switch port. IPv4, IPv6 and a full suite of management protocols are supported, but multi-gigabit uplinks are not available.

Vandal-style housing with fixed pigtail connector

The dome enclosure is built for outdoor mounting and carries an IR LED array rated to 85 m, while Extreme WDR at 150 dB handles high-contrast scenes down to 0.003 lux colour sensitivity. Pan covers 0°-355°, tilt 0°-75° and rotation 0°-355°, allowing flexible aiming after installation. The RJ-45 pigtail requires a weatherproof junction box or gland for cable entry, and two-way audio via line-in and line-out uses PCM, G.711 or G.726 codecs. IEEE 802.1X and TLS 1.2 secure the network interface.

How it compares

Measured against everything we stock in PoE & IP Cameras, at today’s prices. Recalculated every night.

Price $896.99
Pricier than about 86% of the 1,080 comparable items (median $158.99).

Specifications

Product
Brand nameACTi
Model nameA820
Part numberA820
Product typeDome Camera
Display
Highest resolution2688 × 1520
Audio & video
IP cameraYes
PTZ capabilityPan: 0°-355°, Tilt: 0°-75°, Rotation: 0°-355°
Sensor typeCMOS
Video resolution4 MP
Capture resolutionVIDEO
Compression:
H.265 Adaptive Stream (equivalent to Zip or Smart Stream or H.265+), H.264 Adaptive Stream (equivalent to Zip or Smart Stream or H.264+), MJPEG
Maximum Frame Rate vs. Resolution:
- 30 fps at 2688 × 1520–30 fps at 2560 × 1440–30 fps at 1920 × 1080–30 fps at 1280 × 960–30 fps at 1280 × 720–30 fps at 640 × 480–30 fps at 352 × 240
Bit Rate Mode:
Constant, Variable
Multi-Streaming:
Simultaneous quad streams
Digital Noise Reduction:
2D + 3D DNR
Wide Dynamic Range:
Extreme WDR (150 dB)
Image Orientation:
Flip, Mirror, Rotation (Corridor mode) (90°, 180°, 270°)
LensFixed Focal Lens
Optical zoom5x Optical Zoom
Night vision supportYes
SoundType:
2-way, Line-in, Line-out
Audio Compression:
PCM, G.711, G.726
Connectivity
Network protocolsIPv4, IPv6, TCP, UDP, DHCP, PPPoE, HTTP, HTTPS, DNS, DDNS, NTP, RTP, RTSP, RTCP, SMTP, FTP, SFTP, IGMP, ICMP, ARP, UPnP, Bonjour, QoS, SNMP, IEEE 802.1X
Ports & slots
Port countEthernet Port:
1 x Ethernet (10/100 Base-T), RJ-45 pigtail connector
Power
PoE supportYes
Power detailsSource:
DC 12 V, PoE Class 3 (IEEE802.3af)
Power Consumption:
12.5 W (PoE)
Size & build
Mounting optionsOutdoor
Measurements(Ø × H): 141 mm × 99.5 mm (5.55 in × 3.9 in)
Shipping weight1.86 kg
Package size305 × 305 × 305 mm
More details
Security featuresIP address filtering, HTTPS encryption, TLS 1.2 encrypted communication, Password protected user level, Anonymous login, IEEE 802.1X network access control, Standard IoT Security (anti-hacking, anti-malware)

Other versions of this model

3 more in the same range

Questions about this item

How do I decide between the 2688 x 1520 and 1920 x 1080 resolution settings on this A820?

Both run at 30 fps; choose 2688 x 1520 for maximum detail across the 5x zoom range or drop to 1920 x 1080 to halve storage and bandwidth while keeping full frame rate.

What does the 150 dB WDR figure mean when the camera faces a bright doorway?

Extreme WDR at 150 dB captures detail simultaneously in deep shadow and direct sunlight, so faces remain visible when someone steps from a dark street into a lit entrance.

Will the 10/100 Ethernet port limit the 4 MP H.265 stream in practice?

The 100 Mbps link caps total throughput; with quad-stream H.265 at 30 fps the combined bit-rate stays well below that ceiling, so the port does not throttle the 4 MP feed.

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