A pH meter is the instrument commonly used to measure pH values quickly and accurately. pH meters are electronic devices designed to measure the acidity or alkalinity of a solution. They provide a numerical pH value based on the concentration of hydrogen ions in the solution.

To use a pH meter:

Calibration: Before use, the pH meter needs to be calibrated using buffer solutions of known pH values.

Immersion: The electrode of the pH meter is immersed in the solution being tested.

Reading: The pH meter provides a reading on a digital display or analog scale, indicating the pH value of the solution.

pH meters are widely used in laboratories, industrial settings, and various fields where accurate pH measurements are essential. They offer a more precise and direct measurement compared to pH indicators or test strips, making them suitable for applications where high accuracy is required. Regular calibration and proper maintenance are crucial to ensure the accuracy of pH meter readings.