Digital Salt Tester is demanded to measure the salt content in various solutions, including food, water, and cleaning solutions. This tester works by using a conductivity method to measure the electrical conductivity of the solution, which is directly related to the salt concentration. Digital Salt Tester usually displays the salt concentration in parts per million (ppm) or percentage (%). These devices are widely utilized in the food industry to ensure that food products and beverages have the correct salt concentration.