RC Servo and ESC Tester with Manual Knob Control

✅ Test before fitting. A separate controller lets you watch a compatible servo respond on the bench.

✅ Turn the knob. The manual knob gives a changing control input for a matched servo or ESC setup.

✅ Find neutral first. The tester helps you plan the horn and linkage around the observed response.

✅ Keep it in the tray. At roughly 49 x 34.5 x 16.5mm, the tester sits in a small tool tray.

Check servo movement before the linkage goes in

A small bench tester with a manual knob for checking a compatible servo or ESC before it goes into a model. It gives a control reference without assembling the full radio system, so you can plan horn and linkage positions first. Verify pulse and voltage compatibility, and use a correctly matched supply and connector arrangement.

Technical details

• Manual servo/ESC tester
• DC4.8-6V supply specification
• Knob-control arrangement
• Approx. 49 x 34.5 x 16.5mm
• Black; one tester
• Compatible components and supply separate

Add a bench-control reference before building the servo into the model.