The user can modify properties for the speed sensor such as a position, sensing target entity, and direction using Speed Sensor property page.

Figure 1 Speed Sensor property page
•Mother Body: Selects the mother body of speed sensor.
•Sensed Entity: Selects an assembled body as a sensing target entity.
•Position: Defines the center of speed sensor.
•Direction: Defines the direction of speed sensor.
•Range: Defines the range of region to measure output.
•Color: Defines the color of speed sensor.