Smscom Twin Fan speed Controller "PRO" mk2 4.5 Amp, 14 amp The Twin Controller PRO works in exactly the same way as the original Twin Controller but has an additional programme added to its software to remove excess humidity from the growroom during the lights off cycle. The Twin Controller PRO 4.5A automates two monotonous jobs that indoor growers face, further reducing the need to buy heaters and dehumidifiers and thus saving you money, allowing you to focus more on the finer details and enjoy the fruits of your labour that little bit more. Optimise grow room temperature Control grow room humidity Optimise negative air pressure Very smooth fan speed adjustment No need to adjust fan speeds yourself, the controller does it for you Accurate to +/- 1 degree 5m probe Plug and Play Max load (both fans): 4.5 Amps or 3750m3/hrs
