3-Channel Manual Servo Tester and ESC Controller

The 3-Channel Servo Tester and ESC Controller is a compact manual diagnostic tool designed to operate and check up to three servos or electronic speed controllers simultaneously. Featuring three operating modes and an integrated adjustment knob, it allows you to test servo consistency, reaction time, and neutral positioning without a transmitter and receiver. It is an essential bench companion for robotics students, RC hobbyists, and makers.

Versatile operating modes

The device offers manual, neutral, and automatic window-wiper test modes. Manual mode tests response speed as you turn the potentiometer knob, neutral mode returns connected servos to their centre position, and automatic mode cycles them continuously through their full sweep.

Multi-device testing capability

Up to three servos or ESCs can be connected simultaneously. This makes it straightforward to compare response times across multiple speed controllers or check consistency across multiple servos.

Practical RC and robotics use

The tester acts as a standalone signal generator, allowing you to set up CCPM helicopter servos, align airplane steering linkages, or test motor systems on the workbench without standard radio gear.