CO2GRO C1 CO2 Controller with Internal Sensor for Grow Rooms

Take precise control of your grow room environment with the CO2GRO C1 CO2 Controller, available at Holland Horticulture. Designed as an affordable and reliable solution for CO2 monitoring and dosing, this controller allows growers to fine-tune CO2 ppm levels to maximise plant growth, yield, and quality.

Accurate CO2 Monitoring with Internal Sensor

The C1 CO2 Controller features a built-in CO2 sensor that accurately measures carbon dioxide levels directly within your grow space. This all-in-one design makes installation simple while ensuring consistent and reliable environmental readings.

Precision CO2 Control & Dosing

Easily increase or decrease CO2 levels using intuitive control settings. Maintain optimal concentrations between 1,000–1,200ppm to enhance photosynthesis, accelerate plant development, and achieve higher yields.

Advanced NDIR Sensor Technology

Equipped with a 2-channel low-drift NDIR CO2 sensor, the C1 provides highly accurate readings and long-term stability. This ensures consistent performance and reliable control of your grow room CO2 levels.

Multiple Operating Modes & Smart Features

Designed for flexibility, the C1 includes multiple operating modes such as Vent Mode and Greenhouse Mode, allowing it to adapt to different grow environments. Additional features include a green backlit display, day and night sensing, variable chart zoom levels, and historical CO2 tracking for performance optimisation.

Simple Setup & Complete Kit

The CO2GRO C1 Controller is ready to use straight out of the box with no assembly required. Each unit includes:

• C1 CO2 Controller Unit
• Velcro Mounting Strip
• Installation Screws
• User Manual

The Science of CO2 Enrichment

Carbon dioxide plays a vital role in photosynthesis, allowing plants to convert light into energy. Increasing CO2 levels above ambient (~400ppm) enables plants to grow faster, utilise nutrients more efficiently, and produce higher yields.

Maintaining CO2 levels between 1,000–1,200ppm in indoor grow environments can significantly improve plant performance and crop quality.

Key Benefits of CO2 Control

• Boosts photosynthesis and plant growth rates
• Increases yields and harvest size
• Enhances plant quality and density
• Maintains consistent grow room conditions

Optimising Your Grow Room with CO2

For best results, use CO2 enrichment during the light cycle and ensure proper airflow for even distribution. Pairing this controller with a CO2 generator or tank system enables full automation and precise environmental control.

Maintain grow room temperatures between 28–32°C when supplementing CO2, particularly under LED lighting, to support optimal plant metabolism.

Buy CO2GRO CO2 Controllers at Holland Horticulture

Upgrade your grow room with the CO2GRO C1 CO2 Controller and achieve reliable, accurate CO2 management for stronger, faster-growing plants.