The SMS Twin Fan Controller is software controlled with motion flow and not mechanical like other controllers. Therefore, it reacts completely differently to the usual controllers. SMS fan controllers make an evaluation for the gradual increase or decrease of your fan speed. In the course of a cycle it will automatically find the appropriate constant capacity level of the fans to maintain programmed temperature.

This new technique means no more temperature fluctuations and fan noise is kept to a minimum.

• Optimise grow room temperature
• 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
• 5 year warranty