Measuring, controlling, regulating, signalling, checking and recording devices, apparatus and instruments and related software (included in this class), including physical, electrical, electronic, electromagnetic (, namely, radar, microwave) and mechanical apparatus for measuring, controlling, regulating and checking, in particular for determining and monitoring the filling level of containers, as well as related computer programs; pulse echo and microwave instruments and apparatus for measuring a given filling level, as well as associate devaluation, display and protection devices, instruments and apparatus, and parts of such devices, apparatus and instruments; computer programs for operating aforesaid devices, apparatus and instruments; distance measuring apparatus and sensors for the determination of distances; gauge measuring instruments, namely, level gauges, microwave level gauges; computer programs for data processing (all the aforesaid goods included in this class)