Measuring the conductivity of aqueous solutions is becoming increasingly important for the determination of impurities in water. Hach Lange has developed a full range of precision sensors to perform these measurements even under extreme conditions. The sensors are designed for the analysis of waste water, drinking water, beverages, juices and general water quality control systems. The field and laboratory version of the CDC401 Series sensor is designed in a convenient compact style and is ideal for measuring conductivity, salinity, resistivity or total dissolved solids (TDS). Order a conductivity sensor directly on the website, the most popular items are always in stock. If you have any questions or need additional information, you can always contact us by phone, send an email or use the form on the Contacts page.