Inkbird ICC-510-US
Inkbird ICC-510 CO2 Controller User Manual
Model: ICC-510-US | Brand: Inkbird
1. Product Overview
The Inkbird ICC-510 CO2 Controller is designed to precisely monitor and regulate carbon dioxide levels in enclosed environments such as grow tents, grow rooms, and greenhouses. It features a dual output design, allowing simultaneous control of CO2 equipment and ventilation systems. With an intelligent light sensor and multiple running modes, it promotes energy efficiency and optimal conditions for plant development.

Figure 1.1: Inkbird ICC-510 CO2 Controller and external sensor unit.
2. Product Components and Diagram
The ICC-510 system consists of the main controller unit, an external CO2 sensor with a photosensitive element, and a power cord with dual outlets.

Figure 2.1: Overview of the Inkbird ICC-510 CO2 Controller system, highlighting the main unit, sensor, and dual power outlets.
Controller Interface

Figure 2.2: Detailed view of the controller's display and buttons.
- CO2 Display Screen: Shows current CO2 concentration.
- SV Display Screen: Shows the set value for CO2 or fan operation.
- Daytime Indicator Light: Illuminates when the controller is operating in daytime mode.
- CO2 Indicator Light: Illuminates when the CO2 outlet is active.
- FAN Indicator Light: Illuminates when the FAN outlet is active.
- SET Button: Used to enter settings menu and confirm selections.
- Decrease Button (▼): Used to decrease values or navigate menus.
- Increase Button (▲): Used to increase values or navigate menus.
3. Setup and Installation
Follow these steps to properly set up your Inkbird ICC-510 CO2 Controller.
3.1 Unpacking and Inspection
- Carefully remove all components from the packaging.
- Verify that all items listed in the package contents are present and undamaged.
- Inspect the controller, sensor, and cables for any visible damage.
3.2 Connecting Components
- Connect the CO2 Sensor: Plug the external CO2 sensor cable into the designated port on the main controller unit. Ensure a secure connection.
- Connect Power: Plug the controller's power cord into a standard 100-240V AC power outlet. The controller will power on.
- Connect Devices:

Figure 3.1: Dual outlets for independent control of fan and CO2 devices.
- Plug your CO2 equipment (e.g., CO2 regulator) into the outlet labeled 'CO2'.
- Plug your ventilation system (e.g., exhaust fan) into the outlet labeled 'FAN'.

Figure 3.2: Typical installation diagram for the ICC-510 in a grow environment.
3.3 Sensor Placement
Proper placement of the CO2 sensor is crucial for accurate readings and effective control.
- Place the sensor at plant canopy level for the most relevant CO2 readings for plant growth.
- Ensure the photosensitive element on the sensor is exposed to ambient light for accurate day/night detection.
- Avoid placing the sensor directly in the path of CO2 output or fan airflow, as this can lead to inaccurate localized readings.
4. Operating Instructions
The ICC-510 offers various modes and settings to optimize your environment.
4.1 Power On and Initial Display
Once powered on, the controller will display the current CO2 concentration (PPM) and the set value (SV).
4.2 Setting Operating Modes
The controller supports three main running modes: CO2, FAN, and Both.

Figure 4.1: The three available running modes for the controller.
- CO2 Mode: Controls only the CO2 outlet based on set parameters.
- FAN Mode: Controls only the FAN outlet based on set parameters.
- Both Mode: Controls both CO2 and FAN outlets independently based on their respective set parameters.
To change modes, press and hold the SET button until the mode setting appears. Use the ▲ and ▼ buttons to select the desired mode, then press SET to confirm.
4.3 Setting CO2 Levels and Alarms
You can set target CO2 levels and configure high/low CO2 alarms.

Figure 4.2: CO2 alarm settings (AH = High Alarm, AL = Low Alarm).
- Press SET to cycle through settings such as CO2 ON value, CO2 OFF value, High Alarm (AH), and Low Alarm (AL).
- Use the ▲ and ▼ buttons to adjust the values.
- Press SET again to confirm each setting and move to the next.
4.4 Intelligent Light Control System
The integrated light sensor automatically adjusts CO2 output based on light intensity, promoting energy efficiency.

Figure 4.3: The intelligent light control system automatically disables CO2 output during nighttime.
- During daytime, the CO2 outlet will operate according to the set values of the selected mode.
- During nighttime (detected by the light sensor), the CO2 outlet will automatically be disabled to prevent CO2 waste, as plants do not utilize CO2 for photosynthesis in the dark.
4.5 CO2 Calibration
Regular calibration ensures the accuracy of CO2 readings.

Figure 4.4: The controller supports both general and professional calibration methods.
- Refer to the detailed instructions in the included manual for specific steps on performing both general and professional calibration.
- General calibration is suitable for routine maintenance, while professional calibration offers higher precision.
5. Maintenance
Proper maintenance ensures the longevity and accuracy of your CO2 controller.
5.1 Cleaning the CO2 Sensor

Figure 5.1: Important notes on CO2 sensor care.
- Use a dry, soft cloth to regularly clean any dust or debris from the CO2 sensor, especially the photosensitive element.
- Do not damage the white protective film on the sensor, as this can damage internal components.
- Do not cover or seal the CO2 sensor, as this will prevent it from functioning correctly and lead to inaccurate readings.
6. Troubleshooting Guide
This section provides solutions to common issues you might encounter.
| Problem | Possible Cause | Solution |
|---|---|---|
| Controller not powering on | No power, loose connection | Check power outlet, ensure power cord is securely plugged in. |
| Inaccurate CO2 readings | Dirty sensor, improper sensor placement, need for calibration | Clean sensor, reposition sensor, perform CO2 calibration. |
| CO2 outlet not activating | Incorrect mode, light sensor detecting night, CO2 level already met, device not plugged in | Verify mode setting, check light conditions, adjust CO2 set point, ensure CO2 device is plugged into 'CO2' outlet. |
| FAN outlet not activating | Incorrect mode, fan not plugged in | Verify mode setting, ensure fan is plugged into 'FAN' outlet. |
| Alarm constantly sounding | CO2 levels outside set thresholds | Check CO2 levels, adjust alarm thresholds, ensure proper ventilation/CO2 supply. Press any button to silence the alarm. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | ICC-510-US |
| Input Voltage | 100-240V AC |
| Product Dimensions | 6.9 x 3 x 1.4 inches |
| Item Weight | 1.3 pounds |
| Display Type | LCD or LED |
| Color | Green |
| Manufacturer | Inkbird |
| Country of Origin | China |
8. Safety Information
Please read and adhere to the following safety guidelines to prevent injury or damage to the device.
- Ensure the power supply matches the specified voltage (100-240V AC).
- Do not immerse the controller or sensor in water or expose them to excessive moisture.
- Keep the device away from heat sources and direct sunlight to prevent overheating.
- Do not attempt to disassemble or repair the unit yourself. Contact qualified personnel for service.
- Always unplug the device from the power outlet before cleaning or performing any maintenance.
- Ensure proper ventilation in the area where CO2 is being supplemented to avoid hazardous concentrations for humans or animals.
9. Warranty and Support
Inkbird products are manufactured to high-quality standards and are backed by a manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Inkbird website.
For technical support, troubleshooting assistance, or any product-related inquiries, please contact Inkbird Customer Service. Contact information can typically be found on the product packaging or the official Inkbird website.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.