Feature:1. With manual pulse width adjustment, neutral point pulse width output and automatic pulse width adjustment functions, more functions.2. It can easily detect and set the virtual position, jitter and neutral position of the server. Applicable to RC car model, airplane model, ship model steering gear.3. Two sets of steering gears or ESC can be connected, singlechip microcomputer control, good stability and high accuracy. Rotate the knob to detect the steering gear.4. If you connect an electronic speed controller (with or without a brush), you can get rid of the remote control device for manual speed adjustment for test adjustment.5. The performance of the speed controller or motor is very practical, so there is no need to connect the remote control and the receiver tediously. It is equivalent to the function of a "manual receiver", which simulates the rudder of the transmitter through the knob.Specification:Item Type: Servo TesterMaterial: Plastic and Electronic ComponentsWeight: Approx.9g or 0.3ozOutput: 15mA(5.0)Input: DC 4.2-6.0vNeutral Point Output Signal: 1.5ms0.5msPulse Width Adjustment Mode: Automatic or Manual Adjustment or Automatic Neutral Point Signal OutputApplicable to: RC Car Model, Airplane Model, Ship Model Steering Gear.Package List:1 x Steering Gear TesterNote:1. Please allow 0and 8209 1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.