A pH meter is a simple device / instrument, popularly used to measure the acidity and / or the alkalinity of a fluid or substance. The instrument was invented in by an American chemist Arnold O.Beckman in the year 1934. It is a kind of a voltmeter that helps to measure the electrical potential difference between a pH electrode and a reference electrode. The instrument displays the result in terms of the pH value of the solution in which they are immersed.

A pH meter generally has the following inputs:

• An indicator (ion-sensitive or redox).
• Reference electrodes.
• Temperature sensors including thermoresistors or thermocouples.

These instruments are engineered for fast, convenient electrode potential and also for providing accurate measurements and analysis. A pH meter is connected to the pH electrode, and put in such a way that it displays the ready pH value.

Use of pH Meter

• Testing Equipment
• Laboratory Equipment
• Educational Institutions
• Pharmaceuticals
• Chemicals
• Paper and Pulp
• Field and Industrial Instrumentation