A conductivity meter is used to measure the ability of a water-based solution to carry an electric current. It can also evaluate the salinity levels of surface water and soil samples, as well as measure pH.
A conductivity meter uses probes to produce electrical voltage when placed into a solution, and then it measures the amount of completely dissolved solids in parts per million or milligrams per liter. Conductivity meters offer a timely analysis, but they are very dependent on the temperature of the solution. They also offer more general information rather than precise measurements, as they do not specifically measure the number of ions that are present.