electronic transmitter; electrodes; detecting elements, namely, potentiometric detectors, conductometry detectors, amperometric detectors, pH detectors, redox detectors, ion detectors, ion selective detectors, turbidity detectors, oxygen detectors, ozone detectors, carbon dioxide detectors, detectors for dissolved gases, conductivity detectors, total-organic-content detectors, tenside detectors for use in the potentiometric measurement, the conductometry, the amperometric measurement, the pH measurement, the redox measurement, the measurement of ions, the ion selective measurement, the turbidity measurement, the oxygen measurement, the ozone measurement, the carbon dioxide measurement, the measurement of dissolved gases, the conductivity measurement, the total-organic-content measurement or the tenside measurement; devices, namely, test and measurement devices for use in the potentiometric measurement of gases and/or liquids, the conductometry of gases and/or liquids, the amperometric measurement of gases and/or liquids, the pH measurement of gases and/or liquids, the redox measurement of gases and/or liquids, the measurement of ions, the ion selective measurement, the turbidity measurement, the oxygen measurement, the ozone measurement, the carbon dioxide measurement, the measurement of dissolved gases, the conductivity measurement of gases and/or liquids, the total-organic-content measurement or the tenside measurement, and systems, as well as parts thereof specifically computer software programmes for use in the potentiometric measurement, the conductometry, the amperometric measurement, the pH measurement, the redox measurement, the measurement of ions, the ion selective measurement, the turbidity measurement, the oxygen measurement, the ozone measurement, the carbon dioxide measurement, the measurement of dissolved gases, the conductivity measurement, the total-organic-content measurement, the tenside measurement and data processing devices in the nature of electronic controls, displays, sensors, holders, housings and armatures all for use in measuring, testing, and control of physical, chemical and analytical properties, especially for the potentiometric measurement, the conductometry, the amperometric measurement, the pH measurement, the redox measurement, the measurement of ions, the ion selective measurement, the turbidity measurement, the oxygen measurement, the ozone measurement, the carbon dioxide measurement, the measurement of dissolved gases, the conductivity measurement, the total-organic-content measurement, the tenside measurement; computer software for use in data storage; and data processors, electronic controls, electronic evaluation devices for measuring, testing and control devices and systems as well as for the industrial process control; computer software for use in data storage; and data processors for recording, statistical analysis, output and visualization of gravimetric, physical, chemical and analytical measurement values and non-physical product criteria for quality and charge control; computer software for use in data storage; and data processors for safe-guarding of the undertaking of instructions, the back traceability and the compliance with legal requirements; computer software for use in data storage; and data processors for function control and diagnosis of devices, systems as well as parts thereof; computer software for use in data storage; and data processors and computer networks for workflow management, for device integration, for information sharing and for documentation of work processes; computer network interface device based on source codes for data communication for software installation, data exchange, remote diagnosis, assistance with programmable client/server functions for the connection of sensors, measuring devices, laboratory devices and operating terminals to a network

Installation, servicing and repair of measuring instruments for carrying out gravimetric, physical, chemical, analytical measurements and dosings, specifically performance of function tests on measuring instruments for carrying out gravimetric, physical, chemical, analytical measurements and dosings; Provision of information regarding maintenance of measuring instruments for carrying out gravimetric, physical, chemical, analytical measurements and dosings