8-Channel Digital Servo Tester Servo Controller Board Over-Load Protection for Mechanical Arms

Features:
- Power Supply: DC 7.4V input. You can adjust power supply via Green terminals, or use dedicated White terminals for batteries (Batteries are not included).
- 8 Potentiometer Knobs: The faster the speed, the larger the angles.
- Reset Function: Press knobs to reset related servos to 90°
- LED OFF: Press the button and the LED is off, which indicates that the servo has been reset to 90°.
- LED ON: When the LED light is off or flashes, it indicates that the servo is controlled by the knob now.

Package Included:
- 1 x Servo Tester Controller Board