Light Detection and Ranging or LIDAR is a remote sensing method that uses light in the form of a pulsed laser to measure distance. LIDAR sensors provide navigation and localization for autonomous ground robots.
The URG-04LX-UG01 is a laser range-finder (LiDAR) that's inexpensive, accurate and easy to use. This laser utilizes a USB 2.0 interface. The field-of-view for this detector is 240 degrees. Distances are reported from 20mm to 5.6 meters.