Conductivity measurement is a technique used to determine how well a material can conduct electricity. This is often done using a device called a conductivity meter, which measures the electrical current that passes through a solution. The conductivity of a solution can indicate the presence of ions, making it useful in various fields such as water quality testing and chemical analysis. In practical applications, conductivity measurement helps assess the purity of water or the concentration of salts in a solution. Higher conductivity usually means more dissolved ions, which can affect processes in industries like agriculture and environmental monitoring.