CX820
Overview
Specs
Accessories
Review
Comparison
FAQs
CX820

4K 8MP Dome PoE IP Camera with ColorX Night Vision

1 Camera

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Premium Features, Professional Security

ColorX Night Vision

Delivers clear 4K, full color visuals with F1.0 aperture even in extremely low light.

WDR Technology

Balances bright and dark areas, ensures quality images.

Intelligent 3000K Warm Light

Four modes available: Off, Time Mode, Auto Mode, and Smart Mode.

Smart Detection

Person/vehicle/animal detection.

Perimeter Protection

Line Crossing Alert, Zone Intrusion Alert, Zone Loitering Alert

25 FPS Frame Rate

Provides natural, smooth footage.

Specs

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Image Sensor
1/1.8" CMOS sensor
Resolution
3840*2160（8Megapixels)@25FPS
Lens
f=4mm F=1.0, with IR Cut
Video Compression
H.265/H.264
Field of View
Horizontal: 93.2°
Vertical: 48.2°
Diagonal: 111.6°
Day & Night
Color night vision
Infrared Night Vision
N/A
Color Night Vision
3pcs/2.8W/3000K/400Lumens
Frame Rate
Main stream: 2fps - 25fps(default: 25fps)
Sub stream: 4fps - 15fps(default: 10fps)
Code Rate
Main stream:1024Kbps -8192Kbps(default: 6144Kbps)
Sub stream: 64Kbps - 512Kbps(default: 256Kbps)
Audio
Two-way audio
PoE
IEEE 802.3af, 48V Active
DC Power
DC 12.0V⎓1A, <12W
Power Port
DC power port
Ethernet Port
One 10M/100Mbps RJ45
SD Card Slot
Supports Max. 512GB microSD card
Reset Button
YES
Audio In/Out
Built-in microphone & speaker
Browsers Supported
Edge, Chrome, Firefox, Safari
OS Supported
PC: Windows, Mac OS; Smartphone: iOS, Android
Protocols & Standards
HTTPS, SSL, TCP/IP, UDP, HTTP, IPv4, UPnP, RTSP, RTMP, SMTP, NTP, DHCP, DNS, DDNS, FTP, P2P
Maximal User Access
20 Users (1 admin account & 19 user accounts); Support up to 12 simultaneous video streams (10 substreams & 2 mainstreams)
Smart Alarm
Motion detection/person detection/vehicle detection/animal detection
Recording Modes
Motion-triggered recording (default); Scheduled recording; 24/7 recording
HDR
YES
Time Lapse
YES
Smart Home Compatibility
Google Assistant
Temperature
Operating temperature: -10°C~+55°C (14°F~131°F)
Humidity
Operating humidity: 10% ~ 90%
Weatherproof
IP67
Dimensions
Φ 117.4x 103.8mm
Weight
515g
Limited Warranty
2-year limited warranty. For support, visit https://support.reolink.com/hc/en-us/

Gallery

CX820-gallery-0
1Mount
2microSD Card Slot
3Aluminum Casing
4Cable Hole
5Speaker
6Microphone

CX820-gallery-1
1Spotlight
2Lens

CX820-gallery-2

Only Manual Rotation

CX820-gallery-3
1Power Port
2Reset Button
3Network Port
4Waterproof Lid

FAQs

Payment & Shipping
What are your payment options? And what currencies do you support?
You can use PayPal (available in 202 countries and 25 currencies) to purchase Reolink security products, or use credit or debit cards (Visa, MasterCard, American Express, Discover) directly without logging into your PayPal account. See details of Payment Policy.
How much are the customs duties?
Customs duties depend on where your items are shipped from and shipped to. See details in the Shipping Fees part of Shipping & Delivery Policy.
Where can you ship? How long will it take to receive my items?
We sell security cameras to the United States, Germany, the United Kingdom and other dozens of countries.
And we handle orders within 24 hours and pass the packages to our forwarders within 48 working hours. The delivery time varies due to where your items are shipped from and shipped to. See details of Shipping & Delivery Policy.
Functions
Does the camera offer true color night vision when the warm light is off？
Yes, thanks to the ColorX technology, the camera can still provide color night vision without the warm light on. Featuring an F1.0 large aperture that allows four times more light in than an F2.0 aperture. Additionally, the camera is equipped with a 1/1.8" advanced sensor, enabling it to deliver clear and vivid full-color night vision even without additional lighting. You can also turn on the warm light for even higher quality color night vision.
Can I turn off the warm light and siren?
Yes, you can turn off the warm lightand siren manually.
By default, the camera's warm light and siren are motion activated: they will be turned on automatically when a motion is detected. You can turn them off, adjust the brightness of warm light, or customize the siren to your liking.
The camera can provide clear and natural true full-color night vision even without turning on the warm light. You can also choose to turn on the warm light to enhance the quality of the color night vision in extremely dark environments.
Does the camera support person/vehicle/animal detection?
Yes, this camera supports person/vehicle/animal detection.
Does the camera support two-way audio?
Yes, the camera supports two-way audio via its built-in mic and speaker. You can not only capture videos with audio recorded but also have real-time communication with people on the camera's end through Reolink App or Client.
How can I power up this camera?
There are two methods:
1. Via an Ethernet cable, connect the camera to a PoE NVR, PoE injector, PoE switch, or directly to a router with a PoE port, for both power supply and video signal transmission.
Note: Please make sure that the PoE injector/switch is 802.3 af compliant (48V) and supports active mode.
2.Via a DC 12V 1A power adapter (purchased separately), connect the camera to power outlet for power supply only.
What Ethernet cable do I need?
The camera supports T-568B connectors and 8-PIN Ethernet cables of CAT5 or higher.
Where are the recordings stored? Is NVR a must?
The camera can work without an NVR.
1. When it works without an NVR, the recordings can be saved to the microSD card (purchased separately);
2. When it works with an NVR, the recordings can be saved to the NVR.
Note: For best compatibility, do not use the camera with third-party NVRs.
Does the camera compatible with my Reolink PoE NVR?
This camera is compatible with Reolink PoE NVR of the following hardware versions: H3MB18, N2MB02, N3MB01, N7MB01, H3MB18, N6MB01, N5MB01. For best performance, you need to upgrade the NVR's firmware to the latest version for video displaying.
Reolink PoE NVRs that are currently available for sale support all the PoE standalone and plug-in WiFi cameras. However, if you have already had a Reolink PoE NVR, you can check if its hardware version is compatible with this camera.
What kind of microSD card can I use?
This camera supports up to 256GB microSD cards with FAT32 format and Class 10 read & write speed.
Does the camera support NAS?
Yes, the camera supports NAS.
You may want to know How to have Reolink cameras record to my NAS.
How do I use live view and playback?
You can add and set up the camera on Reolink APP/Client. Then click the camera to check the live view and playback of it from anywhere, at any time.
Reolink APP/Client is free of charge and the service is free of subscription.
Does Reolink charge subscription fees for the camera or the Reolink application?
No. Reolink does not charge any subscription fees for camera or Reolink App. All features of this camera as well as the Reolink App are completely free and require no subscription.
Why can't I connect the camera to 3rd party softwares?
The RTSP and other ports may be disabled by default. You can launch Reolink Client, then go to Device Settings >> Network >> Advanced >> Port Settings to make sure all ports are enabled before using 3rd party softwares.
Does the camera work with Reolink IoT devices (Reolink Floodlight, etc.)? How can they be linked?
Yes, the camera works with Reolink IoT devices, including Reolink Floodlight PoE/WiFi. The specific functions supported depend on the camera.
When Reolink Floodlight is linked to a camera, the floodlights and the built-in siren will be triggered once the camera detects an event. Click here to see how to link the camera to Reolink Floodlight.
Does the camera support time-lapse function?
Yes, the camera can support time-lapse. It can save time-lapse photos and videos to the SD card.
How to Set Up Time Lapse?
Does the camera support smart home like Google Assistant?
Yes, currently, this camera can work with Google Assistant.
Tips: How to add this camera to Google Assistant?
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  • 2-Year Limited Warranty.
    2-Year Limited Warranty.
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    24/6 Online Support 1-on-1