pH meter

A pH meter is a scientific device used to measure the acidity or alkalinity of a solution. It provides a numerical value on a scale of 0 to 14, where 7 is neutral (like pure water), values below 7 indicate acidity (like lemon juice), and values above 7 indicate alkalinity (like baking soda). The meter uses a special probe to detect the concentration of hydrogen ions in the solution, which directly relates to its pH level. pH meters are commonly used in laboratories, environmental monitoring, agriculture, and various industries to ensure proper chemical balance.