Terrestrial LiDAR | U-Arm U-Arm Laser Scanner are featured with long-range, high precision, efficiency, small size and lightweight. U-Arm scanners work well for long-range scanning and include 2 models according to the max range, i.e. UA-1000 and UA-2000. Field of view: 360°(H)X 300°(V). Pulse frequency goes up to 600kHz.