Swan Analytical Instruments, a division of the wider Swan group, is a supplier of online quality monitoring instruments for ultrapure and wastewater applications. The company markets sensors for a wide range of parameters, including ammonium chlorine, ozone, conductivity, nitrates, dissolved oxygen, phosphates, iron, Total Organic Carbon (TOC), and turbidity. In addition to sensors and analysers, Swan also designs sub-systems stations for sampling and analysis. Other divisions of the Swan Group include Swan Systems Engineering, which supplies specialist monitoring of wastewater discharge or condensate/cooling water.