Grozone Control CO2D 0-5000 PPM Dual Zone CO2 Controller

Controls the CO2 levels in two zones (or two rooms) simultaneously. Review performance by reading through the integrated 24-hour data logger (minimum, maximum and average values for each hour of operation). Special operating mode to operate two zones with only one CO2 generator. Zone remote sensors include 25-ft cables. Affordable alternative when operating multiple zones. 3 year warranty.