The KO Propo 4S Servo Model Selector is a switch unit for model memory which saves servo parameters. When using BSx4S servos this model selector can change between five separate parameters. This way you can have your servo dialed for each track or car. Package includes one servo model selector.

The selector is very easy to use. Connect the servo lead from this selector to your receiver for power and connect the servo to the bare prongs. The parameter set currently selected is shown by the LED lights. To change the parameter preset, press the button switch on the unit. Press the button until the parameter number pattern is the same number as you wish to use.