SLAM2000 is a high-precision handheld laser scanner. The device has a panoramic laser field of view, an integrated visual camera and a texture camera, a replaceable lithium battery handle, a built-in high-precision inertial navigation unit and a high- performance computing unit to enable real-time 3D data acquisition and mapping. SLAM2000 can be expanded to connect to a variety of external devices such as RTK, backpack, power supply, tripod, etc., and can be widely used in closed spaces, volumetric surveying and mapping, emergency rescue, real- time navigation and other scenarios.