Loading... Please wait...The CHHC-4 controls all of your growing area conditions accurately and reliably. First of all, it has all of the C02 control features of the CHHC-1 and CPPM-1. It also has the ability to control 3 other devices, a heating device and a humidity device. Records the min and max temperature, humidity and C02 levels.
Unlike some C02 controllers, the CHHC-4 is able to be calibrated by the user with the self calibration feature.
