Race tracks, country roads, motorways: VÖGELE's Big MultiPlex Ski comes into play whenever absolute evenness in the longitudinal direction is essential and no absolute grade reference is available. Its 5-13 m beam can be fitted with three multi-cell sonic sensors as standard – or with up to five if required. This enables the Big MultiPlex Ski to scan a reference at several points located at a distance from one another. VÖGELE’s Niveltronic Plus System for Automated Grade and Slope Control calculates a mean from the measurements taken across the entire measuring range, making up for any unevenness over long distances. In this way, the system operates with much greater precision than an individual single-cell or multi-cell sensor, for instance.