Laboratory pH Electrodes

The right sensor makes the difference.

Choosing a pH electrode that is well-suited for your application will not only improve measurement accuracy, but also extend sensor lifetime. Select from basic, advanced, and research grade pH electrodes to find a sensor that meets your application needs.


Durable and Easy to Use

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S150C/BNC pH Sensor


Great for Hydroponics, Aquariums, and Swimming Pools

Recommended for Student Use

Standard Sensor Lifetime

Durable Polycarbonate Body

60⁰ C Maximum Temperature


Versatile for Difficult Sample Types

Standard or specialty models available.

S175CD/BNC - pH Sensor, Spear Tip


Recommended for Environmental and Wastewater Sampling

Specialty Tips for Food and Soil or Surface Measurements

Extended Sensor Lifetime

Durable Ultem® Body with Enhanced Chemical Compatibility

80⁰ C Maximum Temperature

Research Grade

Our Most Sensitive Lab Electrodes

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Best for Low Ionic Samples, Including Drinking Water

Best for Applications with Frequent Temperature Changes

Maximum Sensor Lifetime

Durable Ultem® Body with Enhanced Chemical Compatibility

100⁰ C Maximum Temperature

Don’t recognize the part number you are looking for? Some of our laboratory pH electrodes recently got an update.

Part Number Equivalents Guide

Looking for a glass electrode? We also offer glass body pH sensors designed for various laboratory type applications.

Glass pH Electrodes 

Already know which features you are looking for? Compare our pH electrodes by technical specifications.

Download Specifications


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