The Revotec fan controller is a perfect addition to an existing or aftermarket electric cooling fan. This innovative, highly accurate controller is available in a number of installation options all offering simple and efficient control of your cooling requirements.Options include:Inline - Simply cut the coolant hose an insert the adaptor. Available to suit various hose sizesDirect To Radiator - Features an M22 x 1.5 or M14 x 1.5 male thread to replace many types of OE fan controllersThreaded - With 1/8" BSP, 3/8" BSP or 1/8" NPT threads for screw on fittingsSelf Seal - Simply insert the take off into the coolant hose wallAll the controllers are supplied with a wiring and a relay for easy installation and the fan activation temperature can be user set between 70-120 degrees C.Negative earth applications unless stated otherwise in the dropdown menu.