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Blue rectangular circuit board with eight rotary knobs and servo connectors

yahboom

yahboom RC Servo Tester 8 Channel

SKU CH-9TWP-VWSFG

An 8-channel servo tester with independent potentiometers, manual and centring modes, 5–8.4 V supply, over-current protection and 0.09° control accuracy

  • 8 independent channels with precision potentiometers for simultaneous multi-servo testing
  • Manual and centering modes switched by function keys for flexible operation
  • Over-current protection on 5-8.4V terminal block safeguards connected servos
  • 09 degree control accuracy via 1µs PWM resolution for fine adjustments
  • Button and knob control requires no programming for immediate servo operation

8-Channel Servo Tester

This yahboom tester provides eight independent servo interfaces with high-precision potentiometers for manual control. It suits RC builders and drone technicians who need to centre or sweep multiple servos without writing code.

0.09-Degree PWM Accuracy

The tester delivers a control accuracy of 0.09 degrees by stepping the PWM signal in 1 µs increments. This resolution determines whether the tool meets the precision needs of your control surfaces or camera gimbals.

Over-Current Protected Operation

A terminal block accepts 5 V to 8.4 V supply and includes over-current protection for sustained use. The hardware switches between manual and centring modes via function keys for continuous bench sessions.

How it compares

Measured against everything we stock in Digital Servos & Gyro Controllers, at today’s prices. Recalculated every night.

Price $26.99
Cheaper than about 60% of the 21 comparable items (median $27.99).

Specifications

No published specifications for this item yet.

Questions about this item

What does the 0.09-degree control accuracy mean when I connect a servo?

Each tiny PWM step of 1 µs moves the servo by roughly 0.09 degrees, so you can centre or trim surfaces in very fine increments without overshooting.

What does the 5 V to 8.4 V terminal block limit in practice?

The screw-terminal input caps the supply at 8.4 V, so any servo you plug in must be rated for that range; the built-in over-current protection will trip if a servo draws too much.

How much panel space do the eight knobs and channels need?

The tester has eight independent servo ports and eight matching potentiometers arranged in a single row, so allow a strip wide enough for eight side-by-side connectors and knobs.

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