Precise flow measurement for applications with ultrapure water, water, and water-based media with up to 10% additives. The SU Puresonic detects flow rates of up to 1000 l/min with high precision, including ultra-pure water with low conductivity as produced in reverse osmosis plants. Signal strength is continuously detected and can be used as a quality and maintenance indicator. The measuring pipe is made of stainless steel and is free of measuring elements, seals, and moving parts, eliminating faults due to damage, leaks, or blockages, as well as design-related pressure drops. Maintenance-free and reliable operation thanks to the component-free stainless steel measuring pipe. Suitable for pure and ultra-pure water, as well as water-based media with up to 10% additives. Focused and trouble-free measurement due to the ultrasonic measuring principle, unaffected by fine metallic particles in the water. Fast and unambiguous condition monitoring: Output of signal strength allows conclusions about contamination or process changes. Maintenance measures can be taken early to prevent downtimes. Inline device does not require calibration for absolute measurement, minimizing mounting-related errors and preventing faulty adjustments after installation. IO-Link connectivity for transparent processes, condition monitoring, and loss-free data transmission.