If you have ever studied Chemistry, you would probably already know what PH of a solution is. It is nothing but the acidity or basicity levels of a solution.Water in its purest form is the base for this measure.Purest form of water is neutral, i.e; it is neither acidic nor basic in nature with PH close to 7. Lesser than that, it is acidic, more than that it is basic.The ph meters that are used to find the PH measure of solutions play an important role in medicine , food sciences, biology, chemistry and other sciences.