Ever wondered why METTLER TOLEDO has such a wide portfolio of electrodes for basic pH measurements? The answer is simple: we offer a range of pH electrodes tailored to the various types of samples where pH is measured – providing the right tool for the right job.

There are many key factors to consider when selecting an electrode for a sample, including its chemical makeup, consistency, temperature, pH range and container size (considering length and width restrictions). This decision is crucial, especially for non-aqueous, low conductivity, protein-rich and thick samples, where the use of general-purpose glass electrodes can lead to measurement errors. Depending on the sample, you can easily choose the right electrode by looking at the junction type, electrolyte and membrane.

For more information on choosing the perfect electrode for your sample, have a look at the METTLER TOLEDO pH Theory Guide or visit our dedicated electrodes website: https://www.electrodes.net/en/dealer

You can also learn more about our most common electrodes from the Datasheets: