Includes 1 Servo Motor
Detachable side car
This is the individual component, and does not include the NXT Intelligent Brick, software or any accessories. It requires the complete LEGO?? MINDSTORMS?? NXT set (#8527 or #8547) for use.
The Servo Motor has a built-in rotation sensor that measures speed and distance, and reports back to the NXT Intelligent Brick (sold separately.) This allows for precise steps and complete motor
Lego Mindstorms Interactive Motor (9842) - B000PM8I1G