| Indoor Climate Controller (ICC) Indoor Climate Control. Thermostat & Humidistat triggers exhaust fans. CO2 shuts off when fans turn on. This advanced control is simple to operate yet does a lot to control your indoor environment. Simply plug exhaust fans and co2 equipment into the designated outlets and your ready to go. Co2 will turn off every time your exhaust fan turns on because of humidity or heat exhausting. It uses a sensitive coil thermostat and industry standard cellophane humidistat. |