More than just a servo tester, this unit is designed for 4.8-7.2v operation and is a compact & useful device.
As a servo tester, you can connect a spare receiver battery and the servo to be tested. Using the arrow keys, the servo can be made to move through its entire travel range, one step at a time or centered. The pulse width is continually displayed so that set-ups are quick, simple and accurate. In auto mode, the servo can be made to move through its entire travel range automatically. Using the arrow keys, the speed of this travel can be adjusted. Perfect for checking a servos performance.
If a receiver is connected to the servo tester, the transmitter's pulse width output can also be checked as the control stick is moved.