The servo tester is a simple device for testing servos.

Sometimes we found ourselves having to test a large number of R/C servo controlled devices.  My personal experience is to grab a spare receiver, plug in the servo and battery, then fire up the transmitter.  Although it sounds simple, it's still inconvenient, especially when the spare receiver is installed in a plane. Or the transmitter fell off the workbench one day.

This device is making things simpler:

There are 2 plugs on the servo tester; one is plugged into the battery… the other one is for connecting to the servo.

Press the red button to start in manual or auto mode.