A conductivity meter is an electronic device used to measure the electrical conductivity of a solution. It determines how well a liquid can conduct electricity, which is influenced by the presence of ions, such as salts and minerals. This measurement is important in various fields, including environmental monitoring, agriculture, and water quality testing. The device typically consists of two electrodes that are immersed in the solution. When an electrical current passes through the liquid, the meter calculates the conductivity based on the current flow. Conductivity meters are essential tools for assessing the purity of water and the concentration of dissolved substances.