Water quality sensors allow the measurement of the physical parameters pH, electrical conductivity/salinity, oxidization reduction potential, dissolved oxygen, temperature and turbidity. These sensors respond to the presence of a contaminant in drinking water, and produce readings that can be interpreted by the software, together forming an early warning system. Earlier detection of contamination can allow water quality officials to more effectively isolate and contain a problem before it migrates through the water distribution system. It is suitable for installation within distribution systems, offers improved capability to monitor and control water quality & reduces the risk of water quality failures.