Servo Driver, Tester and Cycler controls your speed controller or tests any of your servos by providing a variable pulse that simulates the output signal of the receiver. It comes equipped with centering LED light that illuminates when servo is precisely centered.

Servo Driver can also run your electric power systems without needing to use of your RC system. Servo driver can be powered by the BEC in your speed control or by any 4.8-6V battery pack.

Features:
- Run your electric motor without your radio
- Test your servos without your radio
- Use to match transmitter throttle to the speed control
- Know what receiver pulse width your motors starts
- Know what receiver pulse width your motor is fully on