Reliable flow measurement is a major challenge, especially in hygienically demanding applications. With FLOWave, we have developed a compact solution which, thanks to its innovative SAW technology, does not require sensor elements in the measuring tube which could come into contact with the measuring medium and can measure not only the volume but also, e.g., the temperature and the differentiation factor, regardless of the medium’s conductivity. The new technology has already proven successful in the pharmaceutical environment for CIP and WFI applications.