A true 2 channel AC & EC fan speed controller with heater control, plus much more. Great for beginners who just want to know if something has gone wrong. Even better for experts because you can fiddle to your hearts content.

Control any air conditioning unit with the same degree of control as our environmental controller.  The Air Con Commander will switch between cooling, heating, dehumidify and fans only automatically.  Independent setting for days and nights as well as an adjustable algorithm to get your room really dialed in. 

I convent way to inject some CO2 in to your room.  The CO2 Doser has a convenient room calculator, just input you room size and rate of flow and it, will do the rest.