Grozone CO2D: 0-5000 PPM Dual Zone CO2 Controller

Controls the CO2 levels in two zones (or two rooms) simultaneously. 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. Included: one main controller box, two remote modules integrating CO2 sensor, two output boxes to connect 120Vac equip., one wall mount power supply, two cpu cables for remote module, two telephone cables for output boxes, user guide, screw kit. 3 year warranty.