The Ultimate Guide to CO2GRO C1 & C2 EXT CO2 Controllers!

The Ultimate Guide to CO2GRO C1 & C2 EXT CO2 Controllers

Maximize plant growth and optimize yields with the latest CO2GRO CO2 Controllers! Designed for precision and efficiency, both the C1 and C2 EXT models allow growers to accurately dose and regulate carbon dioxide (CO2) levels in their grow spaces, ensuring plants receive the optimal conditions needed for enhanced photosynthesis and accelerated growth.

Why CO2 Enrichment Matters

Carbon dioxide plays a crucial role in plant growth by fueling the process of photosynthesis, where plants convert light energy into essential sugars and oxygen. With increased CO2 concentrations, plants can photosynthesize more efficiently, leading to faster development, improved flower quality, and greater overall yields.

Outdoor air typically contains about 400 ppm of CO2, but studies have shown that many fruiting and flowering plants thrive at levels between 1,000 and 1,200 ppm. The CO2GRO C1 and C2 EXT Controllers enable growers to maintain these optimal conditions effortlessly, providing the ideal growing environment for healthier and more productive plants.


Key Features of the CO2GRO C1 & C2 EXT Controllers

  • Precise CO2 Control: Fine-tune CO2 levels to maximize plant growth and yields.
  • C1: Internal 2-Channel CO2 Sensor: Monitors and adjusts CO2 levels with high precision.
  • C2 EXT: External CO2 Sensor Probe: Accurately measures CO2 levels while keeping the main unit outside the grow space.
  • Day & Night Auto Detection: Automatically adjusts CO2 levels based on light cycles.
  • Timelapse CO2 Chart: View historical CO2 concentration trends for better optimization.
  • Easy-to-Read LCD Screen: Monitor CO2 levels and settings with a user-friendly backlit display.
  • No Assembly Required: Ready to use straight out of the box.

What’s Included?

Each CO2 Controller comes with:

  • Controller Unit (C1 or C2 EXT)
  • External CO2 Sensor Probe (C2 EXT only)
  • Velcro Tape Strip
  • User Manual
  • Mounting Screws

The Benefits of Using CO2 Enrichment

  1. Enhanced Photosynthesis – Higher CO2 levels stimulate photosynthesis, allowing plants to absorb more light energy and convert it into essential nutrients.
  2. Increased Yields – Optimized CO2 conditions result in faster growth and more abundant harvests.
  3. Superior Flower Quality – Plants grown with CO2 supplementation often produce denser, more vibrant flowers.
  4. Shorter Growth Cycles – Plants mature faster, leading to more frequent harvests and improved efficiency.

Best Practices for CO2 Enrichment

  • Monitor & Maintain CO2 Levels: Keep CO2 concentrations within the ideal range (1,000–1,200 ppm) for optimal growth.
  • Ensure Proper Ventilation: Good airflow prevents CO2 stagnation and ensures even distribution throughout the growing area.
  • Regulate Temperature & Humidity: Keep temperatures between 28-32°C to maintain proper transpiration rates and plant metabolism.
  • Adjust Nutrient Levels: Plants grown with CO2 enrichment may require higher electrical conductivity (EC) levels to support increased metabolic activity.
  • Use CO₂ Only During Light Cycles

    CO₂ supplementation should be active only when the grow lights are on, typically for 12-18 hours per day, depending on the plant's growth stage and lighting schedule. Plants can only utilize CO₂ when they are actively photosynthesizing, which occurs during light cycles. Running CO₂ at night is wasteful and ineffective since plants do not photosynthesize in darkness and instead respire, consuming oxygen while releasing CO₂.

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    Best Time to Use CO₂ in Flowering:
    During the flowering stage, CO₂ enrichment is most effective in the first 4-6 weeks, when plants are still actively growing and developing bud sites. The optimal CO₂ concentration for flowering plants is between 1,200–1,500 ppm. Introducing CO₂ early in the light cycle, right as the lights turn on, ensures that plants have access to elevated CO₂ levels during peak photosynthetic activity.

  • Prioritize Safety: Always use certified CO2 equipment, maintain proper ventilation, and consider a CO2 alarm for added safety.

Why Choose CO2GRO C1 & C2 EXT?

  • Affordable & Efficient: High-quality CO2 control at an unbeatable value.
  • Adaptable to Any Grow Space: Suitable for both hobbyist and commercial growers.
  • Advanced Monitoring Features: Track and optimize CO2 levels with ease.
  • Reliable & Durable: Built to last with superior construction.
  • The C2 EXT controller is designed with a replaceable probe, which means the entire unit does not need to be replaced if the probe becomes faulty or worn out. Instead of purchasing a new controller, you can simply swap out the old probe for a new one, making maintenance more affordable and environmentally friendly. This feature ensures the longevity of the controller and allows for easy, cost-effective repairs, keeping your CO₂ regulation system running smoothly without the need for a full replacement.

Conclusion

The CO2GRO C1 & C2 EXT CO2 Controllers are the ultimate tools for growers looking to maximize plant health, boost yields, and optimize cultivation conditions. Whether you're managing a small indoor grow room or a large-scale greenhouse, these advanced CO2 controllers provide the precision, reliability, and ease of use necessary for successful plant growth.

Unlock the full potential of your plants with CO2 enrichment—order your CO2GRO C1 or C2 EXT Controller today!