1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your REOLINK CX810 4K PoE Security Camera and Gigabit PoE Injector bundle. This system offers high-resolution surveillance with simplified power and data transmission.
2. Package Contents
Verify that all items are present in your package:
- REOLINK CX810 True Color Night Vision Camera (x1)
- REOLINK Gigabit PoE Injector (x1)
- Ethernet Cable (x1)
- DC Power Adapter (x1)
- Mounting Template and Screws
- Quick Start Guide
3. Setup and Installation
3.1 Camera Overview

Front view of the REOLINK CX810 4K PoE Security Camera, showing its bullet design, lens, and integrated LED illuminators.
3.2 PoE Injector Overview

Top-down view of the compact REOLINK Gigabit PoE Injector, a black rectangular device with indicator lights.

Close-up view of the REOLINK Gigabit PoE Injector's two Ethernet ports: 'Gigabit Data' input and 'Gigabit Data+Power' output.
3.3 Physical Installation
The REOLINK CX810 camera is designed for outdoor use and supports ceiling mount installation. Use the provided mounting template to drill holes and secure the camera in your desired location. Ensure the camera is positioned to cover the desired surveillance area.
3.4 Connecting the Camera and Injector
The Power over Ethernet (PoE) technology simplifies installation by allowing a single Ethernet cable to transmit both power and data. Follow these steps:
- Connect one end of the Ethernet cable to the Ethernet port on the REOLINK CX810 camera.
- Connect the other end of this Ethernet cable to the Gigabit Data+Power port on the REOLINK Gigabit PoE Injector.
- Connect a second Ethernet cable from your network router or switch to the Gigabit Data port on the PoE Injector.
- Connect the DC power adapter to the PoE Injector and then plug it into a power outlet. The injector will power on, and the camera will receive power and network connectivity.

Illustration showing the REOLINK CX810 camera connected to the PoE Injector via an Ethernet cable, demonstrating the simple plug-and-play setup.
3.5 Initial Configuration
Download the official REOLINK App from your mobile device's app store or the REOLINK Client software for your computer. Follow the in-app instructions to add your camera to the system. This typically involves scanning a QR code on the camera or manually entering its UID.
4. Operating the Camera
4.1 Live View and Recording
Access the live video feed through the REOLINK App or Client software. You can view real-time footage, initiate manual recordings, and take snapshots. The camera records in 4K resolution, providing clear and detailed images.
4.2 True Color Night Vision
The CX810 features ColorX True Color Night Vision, which provides full-color images even in very low light conditions, unlike traditional black and white night vision.

Comparison image showing the superior clarity and color accuracy of 4K ColorX True Color Night Vision from the CX810 camera compared to standard black and white night vision.
This technology is enabled by an F1.0 Super Aperture lens, an Advanced 1/1.8" Sensor, and a Powerful ISP Module, working together to capture more light and process images effectively.

Diagram illustrating the key components of REOLINK ColorX Night Vision: F1.0 Super Aperture, Advanced 1/1.8" Sensor, and Powerful ISP Module.
4.3 HDR Technology
The camera incorporates HDR (High Dynamic Range) technology to enhance image quality in scenes with both very bright and very dark areas. HDR balances exposure, revealing details that might otherwise be lost.

Side-by-side comparison demonstrating the enhanced detail and balanced exposure provided by HDR technology (HDR ON) versus without it (HDR OFF) in varying light conditions.
4.4 Smart Detection and Alerts
The CX810 camera features intelligent detection capabilities:
- Person/Vehicle/Animal Detection: The camera can distinguish between people, vehicles, and animals, reducing false alarms caused by irrelevant movements.
- Customizable Motion Zones: Define specific areas for motion detection to focus on critical zones.
- Alerts: Receive instant push notifications via the REOLINK App, email alerts with snapshots, or trigger the built-in siren upon detection.

An illustration depicting the REOLINK CX810 camera's smart detection capabilities, including person detection, siren activation, app notifications, email alerts, and two-way audio communication.
4.5 Two-Way Audio
Utilize the integrated microphone and speaker for two-way communication. This allows you to listen to what's happening around the camera and speak through the camera from your mobile device or computer.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your security system:
- Cleaning: Periodically clean the camera lens and housing with a soft, damp cloth. Avoid abrasive cleaners that could scratch the lens.
- Firmware Updates: Check for and install the latest firmware updates through the REOLINK App or Client software. Firmware updates often include performance improvements, new features, and security enhancements.
- Cable Inspection: Regularly inspect all Ethernet and power cables for any signs of wear, damage, or loose connections. Ensure waterproof connections are sealed properly for outdoor installations.
- Network Health: Ensure your network connection is stable to prevent interruptions in video streaming and alerts.
6. Troubleshooting
If you encounter issues, refer to the following common troubleshooting steps:
- No Power to Camera:
- Verify the DC power adapter is securely plugged into the PoE Injector and a working power outlet.
- Ensure the Ethernet cable from the injector's "Gigabit Data+Power" port to the camera is securely connected at both ends.
- No Video Feed:
- Check all Ethernet cable connections between the camera, injector, and network router/switch.
- Confirm your network router is functioning correctly and has internet access if you are trying to view remotely.
- Restart the camera by unplugging and replugging the power to the PoE Injector.
- Poor Image Quality:
- Clean the camera lens to remove any dirt or smudges.
- Ensure there are no obstructions in the camera's field of view.
- Check network bandwidth; insufficient bandwidth can affect streaming quality.
- Adjust HDR settings in the camera's software if lighting conditions are challenging.
- Motion Detection Not Working or Too Many False Alarms:
- Adjust the motion detection sensitivity settings in the REOLINK App/Client.
- Configure detection zones to exclude areas with frequent irrelevant movement (e.g., swaying trees).
- Ensure Person/Vehicle/Animal detection is enabled if you wish to filter specific types of motion.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | REOLINK |
| Model | CX810 |
| Video Capture Resolution | 4K (8MP) |
| Connectivity Protocol | Ethernet (PoE) |
| Wireless Communication Technology | Wi-Fi (for app control, camera is PoE) |
| Alert Type | Motion Only (Person/Vehicle/Animal Detection) |
| Video Capture Format | MPEG-4 |
| Mounting Type | Ceiling Mount |
| Recommended Uses | Security (Outdoor) |
| PoE Injector Output | PoE+ (30W) or PoE (15.4W) |
| PoE Injector Distance | Up to 100m |
| Date First Available | May 22, 2024 |
8. Warranty and Support
For information regarding product warranty, technical support, and frequently asked questions, please visit the official REOLINK website or contact their customer service directly. Details can typically be found on the product packaging or the REOLINK support page.





