Conductivity / TDS / Salinity
The amount of mineral and salt impurities in the water is called total dissolved solids (TDS). TDS shows how
many units of impurities there are for one million units of water. One way to measure impurities in water is to
measure the electric conductivity of water. Absolutely pure water is a poor conductor of electricity. Water
shows significant conductivity when dissolved salts are present. Over most ranges, the amount of conductivity
is directly proportional to the amount of salts dissolved in the water or Salinity. Four basic styles of
Conductivity / TDS / Salinity meters are available for varying applications: Pens, Portable Meters, Data
Loggers, and Benchtop meters.
Click here for more information about Conductivity, Salinity and Total Dissolved Solids.