


TheTrolMaster BETA8 -- Digital CO2 PPM Controller is a simple and affordable way to control your CO2 injection device. Choose your desired CO2 parts per million (PPM) level and the BETA8 controller will automatically maintain that specified CO2 level. A built-in photocell located on the remote sensor automatically deactivates CO2 injection during the night time. A remote sensor with 16' cable allows close placement to the plant canopy.
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