The picture below shows an example of a pH meter. It is an electronic instrument used to measure the pH value of a substance, consisting of a measuring probe (an electrode) connected to an electronic meter that measures and displays the pH value. The reading on the pH meter gives a reading up to accuracy 0.01, making the instrument much more exact in its reading.
To use the pH meter, you place the electrode into the solution and the pH value is read from the meter.
- DID YOU KNOW that the first commercial pH meters were made in America at around 1936?
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