The RSAK130 is used on rails, bridges, noise barrier tunnels, dams, buildings, supports, high-bay shelves, glass and natural stone façades, etc. At a well-planned installation, adapters that are equipped with pre-installed smart angle targets permit access to the surveying point from almost any position. On railway tracks, for example, the surveyor no longer needs to put himself in danger, but can perform his measurements from a safe position at any time. These targets can potentially eliminate dangerous and expensive road blocks that are no longer necessary, since many measurements can be simplified considerably. 3-dimensional observations are ensured by XYZ coordinates. The targets are fitted vertically to the axis in lift shafts. The axes are clearly visible from any position for all workers.