Lego Mindstorms NXT ultrasonic sonar sensor
This ultrasonic sensor is included in the Lego Mindstorms NXT robotic kit. This sonar sensor, like all the ultrasonic sonar sensors, measures the distances to potential obstacles in front of the robot, allowing it to take a decision to avoid or to approach the obstacle.
Distances measured by the ultrasonic sonar sensor are made in inches or centimeters. The code for the NXT-G for this sensor is native to NXT-G the programming software.
The connecting cable is sold separately.
Lego reference: 9846