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Humidity & CO₂ Systems

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GROZONE USCO2 ULTRA SIMPLE CO2 CONTROLLER 0-1600PPM
GROZONE SCC1 CLIMATE CONTROLLER T°, RH AND CO2

2 products

Showing 1 - 2 of 2 products

FAQ

Maintain 1,000 to 1,500 PPM during the vegetative stage and early flowering for most crops. Seedlings and clones perform best at 400 to 800 PPM, while ambient levels around 400 PPM suffice during dark periods. Your CO₂ controller should allow you to program different setpoints for different growth phases and automatically cut enrichment when the lights turn off.

CO2 enrichment works best when the temperature stays between 24°C and 29°C and the relative humidity remains between 50% and 70% during vegetative growth. A standalone CO2 controller manages carbon dioxide only, while an integrated climate controller (like the Grozone SCC1) coordinates all three parameters. Many Canadian growers start with a basic CO2 regulator, then upgrade to a full climate controller as their operations expand.

Yes, but coordination matters. CO₂ supplementation only makes sense when your ventilation system isn't actively exhausting the enriched air outdoors. Quality controllers include relay outputs that communicate with exhaust fans, pausing CO2 injection whenever ventilation activates. Look for controllers that support your specific setup, whether that's simple exhaust fans or greenhouse automation with motorized vents.

Digital controllers with infrared (NDIR) sensors deliver PPM accuracy within ±50 PPM and allow precise programming. Analog controllers cost less upfront but measure CO2 indirectly through timing cycles (short cycling), making them less accurate in variable conditions. For commercial operations or any scenario involving CO2 generators, the precision of a digital monitor justifies the higher initial cost by reducing waste and optimizing growth.

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