Do you know how a wrong sensor can impact your pH measurements? Curious to know how?

Let us quickly see a few consequences of it with some examples.

First and foremost, a wrong sensor can give inaccurate readings. For instance, in the food and beverage industry, a pH measurement that is too high or too low can cause spoilage, food poisoning or a product that doesn't meet the desired taste profile. This can lead to product recalls, customer complaints and reputational damage.

An incorrect choice of sensor also gives rise to safety hazards. Like in the water treatment industry, an erroneous pH measurement can lead to the release of untreated water that can cause health hazards to the public and the environment.

Source: Mettler ToledoSource: Mettler Toledo

In addition to the above two cases, an unsuitable sensor may not be compatible with the solution being measured, leading to a waste of resources such as reagents, time and money.

In some industries, such as pharmaceuticals, accuracy in pH measurement is crucial for compliance withSource: Mettler ToledoSource: Mettler Toledo regulatory requirements. Using the wrong sensor can lead to violations of regulatory standards, which can result in legal liabilities and financial penalties.

All the mentioned outcomes can result in reduced efficiency, leading to delays in the production process and increased costs.

This looks risky!

What if we tell you that we have a solution to rely on? Yes, you read it right!

Source: Mettler ToledoSource: Mettler Toledo

The Mettler Toledo Sensor Product Guide website helps users find the apt sensor required for a specific application. It is not only user-friendly but also easy to get the appropriate results.

Source: Mettler ToledoSource: Mettler Toledo

As seen in the image above, the website has four major tabs. Under the ‘Sensor Product Guide,’ one can fill in the technical and application-based requirements to get the recommendations for desired sensors.

"Looking at things enables better understanding." Considering this phenomenon, to learn and remember better, the tab for ‘Electrode Handling Movies’ contains quick videos on unpacking and quality checking of electrodes, electrode preparation, tips for pH measurement and the cleaning of electrodes.

Next comes the tab for ‘pH TroubleShooter’. It enables the user to not only detect probable reasons for the improper functioning of the electrode but also suggests several procedures to restore the electrode to its original performance.

Finally, the ‘Glossary’ tab! This acts as the base of the entire website. This is the user’s go-to place to understand the terminologies related to the features of electrodes. It defines the available variety of membrane glasses, junctions, shaft materials, reference systems and electrolytes.

The sub-tabs, namely pH electrodes, conductivity probes, oxygen sensors and redox electrodes placed below the main tabs display the suitable electrodes for the respective parameters to measure. It also provides other details about the sensor with an option to access the datasheet and receive a quote for that specific electrode. Visitors can quickly run through one of the examples of pH sensors in the image mentioned below.

Source: Mettler ToledoSource: Mettler Toledo

The last sub-tab for cables lists the varied cable connections available for use as per the requirements of users.

Lastly, what remains is the usage of this website!

Find the right sensor or cable tailored to specific needs in only three easy steps:

Step 1: Choose your language.

Step 2: Search for your sensor or cable by entering the product name or order number (Step 2A) or clicking the sensor/cable guide (Step 2B).

Within the sensor guide, specify a search further either via technical search criteria (Step 2B.A) or via the desired application (Step 2B.B).

Step 3: Select the appropriate sensor and get more information (Step 3A) or request a quote (Step 3B).

Now that you have understood a quick and reliable path to choosing your sensor, why wait?

For any additional information, refer to Sensors for pH, Conductivity, Ion, DO, and ORP Applications (

We wish you smart choices and efficient utility with your experiment!

To contact the author of this article, email