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Small rectangular servo tester with three channel ports and cable

Ruth's sister

Ruth's sister Multi Servo Tester 3CH internal power cable

SKU CH-RE8B-90CTH

Tests three servo channels with CCPM support for RC drones and helicopters

  • Tests three servos simultaneously
  • Checks ESC consistency and speed
  • Supports CCPM mixing for helicopters
  • Built-in power channel simplifies wiring

Multi Servo Tester 3CH for RC builds

This 3-channel servo tester checks electronic speed controller consistency and CCPM mixing for drones and helicopters. It serves hobbyists who need to verify multiple channels simultaneously before flight. The unit is an internal power cable accessory intended for bench testing rather than permanent installation. Buyers who require telemetry logging or wireless configuration cannot use this device.

Thermals noise and power draw in normal use

The tester draws minimal power from the connected battery pack and runs without active cooling. No fan is present so acoustic output is effectively silent during operation. Heat generation stays negligible because the circuitry only drives servo signal lines. Extended sessions do not require additional ventilation.

Highlights

  • Tests three servos simultaneously
  • Checks ESC consistency and speed
  • Supports CCPM mixing for helicopters
  • Built-in power channel simplifies wiring

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 3CH servo tester to my receiver and servos, and which wiring step is most often done incorrectly?

Plug the tester's three signal pins into the receiver channels, connect each servo to its matching output, then supply 4.8–6 V to the dedicated power input; the common mistake is feeding power through a signal pin instead of the separate power terminal.

What maintenance will the tester's connectors and buttons need after repeated field use?

Inspect the servo lead pins for bent or oxidised contacts every few flights, clean with contact spray if resistance rises, and verify the tactile switches still click cleanly; no internal batteries or moving parts require scheduled replacement.

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