Fan Switch Controller(FSC) prevents loss of power due to inadequate level of coolant temperature. The FSC allows the user to set the cooling fan to kick-in at any temperature level to maintain the best temerature setting. Temperature control can be done in 1 degree increments. By using an optional relay kit, FSC could set to almost any cars its coolant temperature are controlled by temperature sensor switch. It's an essential unit for any high powered engines and also a circuit runing with stock to moderate powered engines.

It has warning and peak hold functions for water/oil temperature.(Choose water or oil temperature first; then set up the respective warning level.) Both water and oil temperature can be displayed alternately on the face of the gauge simply by pushing a switch on the face of the meter