Description

The ToolkitRC ST8 Advanced Servo Tester is a professional-grade, multi-functional testing and measurement tool designed for RC hobbyists, drone builders, and robotics engineers. Featuring a wide DC input voltage range (7.0V to 28.0V) and capable of handling up to 10A, the ST8 serves as a robust servo tester, signal generator, and power meter. It supports multiple signal protocols including PWM (500us–2500us), 8-channel PPM, and 16-channel SBUS with adjustable signal frequencies ranging from 33Hz to 1000Hz.

Equipped with a crisp 2.4-inch TFT RGB color display (320×240 resolution), the ST8 provides real-time monitoring of voltage, current, signal width, and frequency. With adjustable output voltage (5.0V to 8.4V at up to 4A) across multiple signal ports (S1-S4), it allows users to precisely test servos, measure power consumption, and analyze radio control signals. A built-in USB micro port allows for quick firmware upgrades, making it an essential, highly portable addition to any workbench or field kit.

Note: Product images are for reference only; actual appearance, firmware versions, or packaging may vary slightly based on manufacturing batches.


Key Features

  • Wide Input & Output Range: Supports 7.0–28.0V DC input at up to 10A, with adjustable regulated output voltage from 5.0V to 8.4V (Max 4A) across signal ports.
  • Multi-Protocol Signal Support: Comprehensive testing capabilities for PWM (33Hz–1000Hz), 8-channel PPM, and 16-channel SBUS input/output signals.
  • Vibrant 2.4-inch TFT Display: High-resolution 320×240 color screen provides clear, detailed visual readouts of signal parameters and electrical metrics.
  • Precise Signal Control: Adjustable pulse width ranging from 100us to 2900us for exhaustive servo stress testing and calibration.
  • Power Meter Functionality: Measures voltage and current draw in real-time under load conditions.
  • USB Firmware Upgradable: Easily update device firmware via the built-in micro-USB port for future feature enhancements.

Benefits

  • Comprehensive Servo Diagnostics: Accurately check centering, speed, jitter, and maximum travel limits across different servo types and voltages.
  • Field Portability: Compact and lightweight design fits easily into any flight box, tool bag, or mobile workstation.
  • Versatile Power Source: Can be powered using standard field batteries (up to 6S LiPo) to test high-voltage (HV) servos directly on location.

Applications

  • RC Airplane & Helicopter Maintenance: Ideal for centering control surfaces, testing gear doors, and checking throttle linkages.
  • FPV Drone & Multirotor Building: Useful for verifying ESC signals, gimbal calibration, and receiver signal integrity.
  • Robotics & Actuator Testing: Perfect for benchtop development and troubleshooting of standard and high-voltage PWM/SBUS servos.

Package Includes

  • 1 x ToolkitRC ST8 Advanced Servo Tester
  • 1 x USB Cable for Firmware Updates
  • 1 x User Manual / Quick Guide

Specifications

Parameter Specification
Item Type Advanced Servo Tester & Signal Generator
Brand / Series Name ToolkitRC (ST Series)
Model Number ST8
Input Voltage Range 7.0 – 28.0V DC (Max 10A)
Signal Port Output 5.0V – 8.4V @ Max 4A (Ports S1 – S4)
Output Signals & Frequency PWM: 100us – 2900us @ 33 – 1000Hz
PPM: 8 Channels
SBUS: 16 Channels
Display Screen 2.4-inch TFT RGB Color Display (320 × 240 resolution)
Firmware Interface Micro-USB (Supports USB 3.0 / PC Connection for Updates)
Shipping Weight 0.12 kg
Shipping Dimensions 11 × 9 × 5 cm

Refund Reason