A sensor and relay device that monitors room CO2 concentration and automatically opens or closes a CO2 tank regulator solenoid to maintain a target PPM range.
Dakota shows the CO2 controller mounted in the grow room corner alongside the regulator and tank. It is set to cut off the CO2 flow once levels exceed 800 ppm. Exhaust fans are disabled during CO2 enrichment periods and only run for one 5-minute cycle after lights out.
Discussed in: Ep 004