Guide to pH Meters

There are many different features of a laboratory pH meter to take into account before making your purchase, including accuracy, calibration type and number of calibration points, intuitive operation, expandability, reliability and value. This guide will take a look at three main selection criteria: benchtop or portable, pH detection range and pH resolution.

First, let’s look at where you will be using your pH meter: in the field, around your lab or sitting on your benchtop.

Benchtop pH Meters

Benchtop pH meters offer the greatest versatility. Depending on which one you choose, these flexible models can provide the option to add built-in printers, data loggers, many different probe arms and accessories. Traditionally, the most precise, feature-packed meters have been benchtop models.

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Portable Handheld pH Meters

Portable handheld pH meters in the past have lacked some of the sophisticated features of their benchtop counterparts, but now many of the portable models on the market are nearly as advanced. The new generation of portable meters can be a very attractive, if not required, option for lab or field use. Keep in mind that a portable model may carry a slightly higher price tag.

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