The SMS Twin Fan Speed Controller is a unique product that represents a real step forwards in automatic temperature control to optimise your hydroponic grow room temperature and air pressure.
Unlike other fan controllers that simply shunt fans from idle to full speed after the temperature is exceeded, the SMS Twin Fan Speed Controller will automatically calculate the exact running speed for your fans and adjust them slowly to maintain the required temperature you have set. A probe is fitted to the unit to read the atmosphere around it and it is accurate within +/- 1 Degree.
This new technology provides much more accuracy with your temperature control, limits fan noise and guarantees negative pressure inside your grow room.
This is a plug and play unit that requires no wiring, just simply plug in your fans and set the temperature you require and the SMS Twin Fan Speed Controller will take care of the rest.
Max load (both fans): 4.5Amps or 3750m3/hr