Swan is a global leading provider of online water quality instruments that are distinguished by their reliability, precision, and quality. For over 30 years, Swan has been developing and manufacturing high quality online analytical instruments at our site in Switzerland. Our comprehensive portfolio is entirely dedicated to water analysis offering cost efficient as well as low maintenance solutions. We provide instruments for the measurement of many water quality parameters including Turbidity, Conductivity, Disinfectants, Dissolved Oxygen, Organics, Ozone, pH, Phosphate, and many others.