Conductivity sensors measure the specific conductance of liquid processes. The specific conductance is directly related to the presence of ionic species and their concentration. Barben Analytical offers a full range of two electrode and four electrode contacting conductivity sensors for a variety of industrial measurement applications. Two Electrode Conductivity Sensors: are good for pure water and other low to medium conductivity applications with a large range of cell constants to ensure the sensor range properly matches the application. Four Electrode Conductivity Sensors: are ideal for medium to high conductivity applications as a great low cost alternative to toroidal sensor technology. The additional electrode pair compensates for particulate and scale build-up.