“GZAIR 1300P Indoor CO2 Meter, AB841 Compliant for Classrooms, Temperature and Relative Humidity Wall Mountable Carbon Dioxide Detector, Air Quality Monitor, CO2 Monitor, NDIR Sensor, Time & Date (Battery Included)” has been added to your cart. Continue shopping

“GZAIR 1600P-F Carbon Dioxide Controller CO2 Meter Day and Night with Relay Function 16ft Cable NDIR Sensor Fan Controller for Grow Room, Greenhouse, Grow Tent, Home, Office, Factory” has been added to your cart. Continue shopping