Digital Ph Meter is a scientific instrument used to measure the acidity or alkalinity of a liquid solution. This pH meter measures the pH value of a solution on a numerical scale typically ranging from 0 to 14. A pH of 7 is considered neutral, pH values below 7 indicate acidity, and pH values above 7 indicate alkalinity. Digital Ph Meter features a digital display that shows the pH value of the measured solution. The display may also show additional information such as temperature, electrode status, calibration status, and battery level.