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White dome camera body with F1.0 lens and 3000K spotlights

Reolink

Reolink CX820 4K PoE Dome Network Camera

SKU CH-41NX-2NNC8

An 8 MP dome camera delivering 4K HDR video with an F1.0 aperture, 1/1.8" sensor and true colour night vision, plus smart person, vehicle and animal detection, dual sound-light deterrents.

  • Highest resolution3840 × 2160
  • Connection methodRJ45
  • Cameras included1 Camera
  • Type of camera8MP Dome
  • Mounting optionsWall/Ceiling Mount
  • MicroSD card slotUp to 256 GB Micro SD card

Quantity 1-Pack

  • 4K HDR resolution reveals balanced shadows and highlights
  • F1.0 aperture and 1/1.8" sensor capture four times more light than F2.0
  • ColorX night vision delivers true full-colour footage in dim light
  • Smart detection identifies people, vehicles and animals instantly
  • IP67 rating ensures dust and rain protection outdoors

Reolink CX820 4K PoE Dome Camera

The Reolink CX820 is a single 8MP dome network camera built for outdoor surveillance. It delivers 4K resolution at 3840*2160 with HDR technology for balanced shadows and highlights. Power over Ethernet simplifies installation with a single RJ45 cable carrying both data and power. Smart detection identifies people, vehicles and animals to reduce false alerts.

IP67 Weatherproof Thermals and Power

The IP67-rated housing protects the camera from dust and rain across challenging outdoor conditions. PoE power delivery eliminates separate power adapters and reduces cable runs. The F1.0 super aperture and 1/1.8" sensor gather four times more light than F2.0 lenses for brighter images day and night. ColorX night vision provides full-colour footage in low light without extra illumination.

3000K Spotlights and Local Storage

Integrated 3000K spotlights activate with motion detection alongside a siren for sound-light deterrence. Two-way audio allows remote communication to warn off intruders. A micro SD slot accepts cards up to 256GB for onboard recording. The camera also supports NVR and FTP storage options. ONVIF compliance enables integration with compatible third-party systems.

How it compares

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

Price $97.99
Cheaper than about 65% of the 1,080 comparable items (median $158.99).

Specifications

Product
Brand nameReolink
Product lineColorX Series
Model nameColorX Series Dome
Product typeWired Camera
Product colorWhite
Display
Highest resolution3840 × 2160
Audio & video
Type of camera8MP Dome
IP cameraYes
Pan and tiltNo
PTZ capabilityNo
Sensor typeSmart Detector (People, Animal, Vehicle)
Camera resolution8 MP
Video resolution3840 × 2160(8Megapixels)
Capture resolution3840 × 2160(8Megapixels)
Video frame rateMain stream: 2fps - 25fps(default: 25fps)
Sub stream: 4fps - 15fps(default: 10fps)
LensFixed Focal Lens
Digital zoom10x digital zoom
Night vision supportColor Night Vision
3pcs/2.8 W/3000K/400Lumens
SoundTwo-way audio
Connectivity
Connection methodRJ45
Wireless connectivityNo
Network protocolsHTTPS, SSL, TCP/IP, UDP, HTTP, IPv4, UPnP, RTSP, RTMP, SMTP, NTP, DHCP, DNS, DDNS, FTP, P2P
ONVIF supportYes
Ports & slots
MicroSD card slotUp to 256 GB Micro SD card
Power
PoE supportYes
Power detailsPoE: IEEE 802.3af, 48 V Active
DC Power: DC 12.0 V?1A, <12 W
Size & build
Mounting optionsWall/Ceiling Mount
MeasurementsF 117.4x 103.8 mm
Product weight515g
Compatibility
Supported operating systemsPC: Windows, Mac OS; Smartphone: iOS, Android
In the box
Cameras included1 Camera
In the boxColor X Camera ×1
1m Network Cable ×1
Environment & compliance
Humidity rangeOperating humidity: 10% ~ 90%
Temperature rangeOperating temperature: -10 °C to 55 °C (14 °F to 131 °F)

Other versions of this model

1 more in the same range

Questions about this item

How do I install the Reolink CX820 dome camera on a wall or ceiling and which step is most often missed?

Mount the base to the wall or ceiling, run a single Ethernet cable to a PoE switch or injector, then secure the dome; the step most often missed is verifying the PoE source delivers enough power before final tightening.

What maintenance will the Reolink CX820 need over time?

Clean the dome cover periodically to keep the F1.0 aperture clear, check the Micro SD card health if recording locally up to 256GB, and apply firmware updates when released.

What limit appears first during continuous 4K recording on the Reolink CX820?

The Micro SD card capacity tops out at 256GB, so sustained 3840×2160 capture will fill the card before any other hardware limit is reached.

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