6 Channel Digital Servo Tester

Features: Use high-precision six potentiometers, which can control the corresponding six servos simultaneously. The 0th, 1st, 2nd, and 3rd connectors have over-current protection to prevent servo from burning out due to over-current. There is a small button under each knob of the controller, press it, the servo will return to the center of the state.   Specifications: Power supply: 5-8.4V Dimension: approx. 76mm*53mm (2.99inch*2.09inch) The voltage that the tester requires should correspond to the voltage required by a servo that you controlled.