Evolution CO2 Control Unit
It is the ultimate solution for bottled CO2. The Evolution monitors CO2 levels within the grow room and constantly adjusts the amount of CO2 to maintain ideal conditions for optimal plant growth. PPM (parts per million) levels can be easily set on the controller to suit various growing conditions. We recommend around 1000-1200 ppm for optimum results. This unit is also compatible with the Evolution Digital Fan Speed Controller and then makes an ideal solution for non-sealed rooms.