3D virtual reality glasses; analyzers for analyzing liquids, fluids, gas and solids; downloadable software for use with 3D virtual reality glasses and blank optical data carriers for analyzing liquids, fluids, gas and solids, namely, downloadable software for transferring measuring and process data, for training purposes, for step-by-step work instructions, for navigation and plant overview as well as for remote services; downloadable software in the nature of a mobile application for use wit...