In the highly regulated market of pharmaceutical water treatment, every technological evolution must reconcile performance, safety, and compliance. With Aqu@sense MB, the Austrian group BWT, in partnership with the Swiss start-up bNovate, has introduced a breakthrough solution: an online microbiological analyzer capable of measuring in real time the bacterial load of purified and injectable waters. The company received primary validation, the official endorsement from the authorities to use this process, in 2023. Spotlight on this innovative technology, still rare in the sector, but offering highly promising prospects.