SLAMTEC A2 360-degree Laser Ranger Scanner is a low-cost 2D LIDAR solution developed by Shanghai Slamtec Co., Ltd. It can scan 360-degree environment with 4000 points per second within a 6-meter radius. And the generated planar point data map can be used for map building, robot localization and navigation, object or environment modeling, etc. It has an excellent performance in various indoor environments and outdoor environments without sunshine. When the RPLIDAR takes 400 points as example per period, its scan frequency is 10 Hz and the maximum value can be up to 20 Hz by configuration. SLAMTEC A2 adopted self-developed contactless optomagnetic technology to guarantee more reliable power supply and signal transmission.