Our relay based controllers take advantage of two speed motors utilized in various OEM cooling fans. Operation is identical to the Ford CCRM, but in a stand alone unit with a configurable temperature setting. Our 2-fan solid state controllers are designed to power the highest amperage dual fans

Our constant temperature, full variable speed controllers have long been considered the best on the market. They can be utilized with virtually any cooling fan and employ pulse width modulation in order to set the fan to any speed in order to attain a constant temperature without cycling, regardless of driving conditions.