TrolMaster Beta-2 Digital Day/Night Fan Speed Controller spl_hf Fortified Carbon Filter Lining: The

Fortified Carbon Filter Lining: The robust carbon filter lining of this case locks in and suppresses enclosed scents

Combine with high quality fibrous peat moss

Air flow production of 7

Detachable

TrolMaster Beta-2 Digital Day/Night Fan Speed Controller spl_hf Fortified Carbon Filter Lining: TheTrolMaster BETA 2 Digital Day Night Fan Speed Controller Precise Climate Control for Variable Speed Fans Take control of your grow room climate with the TrolMaster BETA 2 Digital Day Night Fan Speed Controller. Designed to optimize ventilation based on temperature fluctuations, the BETA 2 adjusts variable speed fan output between 25% and 100% to maintain your setpoint. As the temperature rises, fan speed increases to enhance cooling; as it drops, fan