C2 CO₂ Controller – Serious CO₂ Management with External Probe

Built on the same hardcore tech as the smaller C1 model — but this time with a separate, replaceable CO₂ probe. Manage and monitor your CO₂ setup from outside the grow space for easier access, more flexibility, and a smarter workflow. Unlike the C1’s integrated sensor, the C2 Controller gives you total remote control and future-proof reliability — just swap the probe when needed and keep pushing flawless grows.

Why Supplement with CO₂?

Serious growers know: CO₂ is the secret weapon for next-level results. By enriching your environment during veg and flower, you unlock faster growth, bigger yields, denser flowers, and an all-round healthier crop. Supercharge photosynthesis, let your plants hit their true genetic potential, and cut valuable time off your cycle.

Main Features:

• Increase or Decrease CO₂ Levels with precision
• 2-Channel NDIR Sensor for ultra-reliable readings
• Easy-to-Read, Backlit LCD Screen for quick info checks
• Day & Night Sensor for automated CO₂ adjustment
• Plug-and-Play Setup — no assembly stress
• Timelapse Chart to track historical CO₂ levels and room behaviour

What’s in the Box:

• 1 x C2 Controller Unit
• 1 x External CO₂ Sensor Probe
• 1 x Velcro Tape Strip
• 1 x User Manual
• 1 x Set of Screws

The Science Behind CO₂ Supplementation

Plants breathe in CO₂ during photosynthesis, converting light energy into chemical energy to build size, strength, and weight. Normal air has about 400ppm of CO₂ — but in a grow room? Plants absolutely thrive when CO₂ levels are boosted to 1,000–1,200ppm. Elevated CO₂ = faster photosynthesis = faster, stronger, better results.

Benefits of CO₂ Enrichment:

• Accelerated Growth — get through veg and flower quicker
• Higher Yields — more weight on every harvest
• Improved Quality — tighter buds, richer trichomes, and stronger potency
• Shorter Crop Cycles — more grows per year, more profit, less downtime

Pro Tips for CO₂ Use:

• Monitor Closely: Aim for 1,000–1,200ppm during lights-on periods. Don’t overshoot past 1,500ppm — it’s wasteful and risky.
• Ventilate Properly: Move the enriched air around to prevent dead spots and maximise benefit to every plant.
• Keep Temps Dialled: 28–32°C air temps (especially with LED lighting) ensure leaf temps stay optimal, promoting stomatal action.
• Adjust Feeding: Plants grown under enriched CO₂ environments with LEDs will need stronger feeds — expect higher EC requirements.
• Use It When It Counts: Only dose CO₂ while the lights are ON. No need to waste gas during the dark cycle.
• Stay Safe: Proper ventilation, alarms, and following storage guidelines are essential when working with compressed CO₂.

Final Word:

The C2 CO₂ Controller is the weapon of choice for growers who aren’t here to play — designed to take your environment, and your harvests, to the next level with precision CO₂ control. Simple, tough, reliable, and essential for serious indoor cultivation.