pH & Ion Electrodes

pH & Ion Electrodes are critical tools in the measurement of acidity, alkalinity, and ion concentration in various solutions.

Various types of pH electrodes offer precise and quick readings, which are essential for a wide range of scientific applications, from environmental monitoring and medical diagnostics.

The diversity in electrode types caters to specific measurement needs, ensuring accurate results across different mediums. With advancements in electrode technology, these instruments provide reliable performance in challenging conditions, including extreme pH ranges and non-aqueous solutions.

Their ease of use, combined with the ability to deliver rapid and accurate measurements, makes pH and ion electrodes indispensable in laboratories and fieldwork, facilitating research and quality control processes.

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pH Electrodes

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  • Sealed Ag-AgCl Reference, Epoxy Epoxy plastic body incorporates glass electrode and sealed Ag-AgCl reference electrode in a single stem Range pH 0 to 14, 0° to 100°C Usable at pressures from 0 to 100 psig (690 kPa) Offered in choice of types, each with US Standard or…

  • Backed by our commitment to accurate and precise measurement, the OHAUS Starter Series of electrodes are designed to produce exact results time and time again. The Starter Series includes pH, reference, oxidation-reduction potential (ORP), conductivity

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    Thermo Scientific Orion

    Orion Triode 3-in-1 Probe is a practical solution for field and plant use. The pH/Reference/ATC probes are all in one body. It's non-refillable, little or no maintenance required. You get portability and accuracy in one package.

  • labForce® (powered by Thomas Scientific)

    The unique blue glass membrane, has a faster response rate, better repeatability, and impact-resistance. Polymer Electrolyte, ideal for testing wastewater and suspension. No more clogged junction. Long-Life Reference System, improves the stability of reference electrode and prolongs the service…

  • SenTix®: Standard electrodes with gel and precision electrodes with liquid gel electrolyte for pH measurements in lab applications and in the field Maintenance-free gel reference system across the entire product life Quick repsonse time by good connection to the medium for electrodes…

  • These ABS plastic electrodes are ideal for field applications. Use double junction for testing dirty water and solutions with heavy metals or organics. Completely submersible—including the extra-long 10-ft cable. Annular junction provides fast response and resists pressure effects of…

  • This small-diameter, refillable pH electrode is ideal for measurements in test tubes, NMR tubes, and other applications where space is limited. Double junction; epoxy-body Features a 9 mm diameter, which is ideal for test tube applications Range: pH 0 to 12 Connection: BNC …

  • Thermo Scientific Orion

    Superior stability pH range 0-14 Temperature of 0°-100°C 3 M KCl filling solution supplied with electrode

  • Solid State Technology Solid State electrodes have solid, homogeneous sensing elements. They are more rugged and easier to clean than glass or membrane sensors. Polishing strips for the solid state sensors are included with the electrode. Thomas also offers a half-cell version that…

  • With an integrated temperature sensor, this maintenance-free gel-filled electrode covers most applications and offers automatic temperature compensation. Special features Unbreakable, chemically resistant POM shaft Integrated NTC 30 kΩ temperature probe Application …

  • Electrochemical sensors are used in a wide variety of applications. METTLER TOLEDO offers a similarly wide variety of select products to help you find the ideal solution for your precise application. Their range focuses on the correct combination of high-quality materials, tried-and-tested…

  • Thermo Scientific Orion

    Orion™ Electrode Extension Cables (4153X33 & 1212U41) Extend the length of an electrode cable by 15′ (4.57m) when using the Thermo Scientific™ Orion™ Electrode Extension Cables. Can be used with Orion ATC probes, any reference electrode with 2mm pin tip connector or…

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    Thermo Scientific Orion

    Storage bottle for protecting electrodes between uses. For use with Glass body 12mm electrode

  • Glass Membrane Sensor High accuracy Reliable Economical Glass sensor electrodes are the best available method for measuring sodium ions. They are less expensive than solid state or dry sensing membranes and still offer a high degree of accuracy and responsiveness. …

  • These economical electrodes are ideal for field, clean water, and general-purpose applications. Single-junction, epoxy-body, gel-filled pH electrodes Pin-type junction provides low electrolyte flow for long life High range of 0 to 14 pH 3 foot (1 meter) cable

  • Accent Control Systems

    Ryton Body Electrode with Dry-Loc and NPT Connections. Includes 3K ohm Balco NTC Use with 3-2760-1 or -11 Preamp

  • Material: Epoxy Use With: Oakton 600 series meters

  • Use to take mV readings Choose a single-junction electrode for field, clean water, and general-purpose applications; choose a double junction electrode for most applications including field, dirty water, heavy metals, and organics. Both models have a pin-type junction that provides low…

  • Time is Precious Liquid filled electrodes are reliable workhorses, constructed for efficient pH measurements in daily laboratory use of a wide application range. For more complex sample matrices like emulsions or biological media, electrodes with a sleeve junction are recommended. InLab…

  • The FoodTrode is a robust, combination electrode for measurements in media containing proteins. Three ceramic diaphragms guarantee quick, accurate measurements. Benefits Robust combination pH electrode for measurements in media containing proteins 3 ceramic diaphragms guarantee quick…

  • Dry Contact Technology Dry Contact Technology replaces traditional liquid or gel-filled ISE's. Dry contact electrodes require no preconditioning. Simply place electrode in a sample and read results. This innovative technology offers unlimited shelf life and greater measurement stability. …

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    Thermo Scientific Orion

    pH and temperature measurement with one electrode Superior stability with high accuracy pH and temperature measurement Fast pH response even in samples at varying temperatures Compatible with Mettler-Toledo TM Five and Seven Series meters and others which accommodate NTC30 thermisters with…

  • Dry Contact Technology Dry Contact Technology replaces traditional liquid or gel-filled ISE's. Dry contact electrodes require no preconditioning. Simply place electrode in a sample and read results. This innovative technology offers unlimited shelf life and greater measurement stability. …

  • Immersion depth is 1 mm and requires only 0.5 mL of sample. pH range is 0-14. Temperature range: -5 to 100°C. Dimensions: 120 mm x 6 mm; tip diameter: 1.3 mm. Type reference: Ag/Ag/Cl.

  • labForce® (powered by Thomas Scientific)

    The labForce® ORP-01 ORP Electrode is a general purpose, lab or field electrode offering affordable, low maintenance performance for many water applications. Features: Epoxy body with standard 12mm diameter and 120mm length. Sealed, gel-filled reference with double junction …

  • Thermo Scientific Orion

    Electrode holders and stands Electrode holders and stands permit one-handed operation of electrode movement Four-position holders allow simultaneous use of pH or ISE electrode and reference half cell Swing arm stand (0732H82) allows flexible movement of electrodes. Holder…

  • BlueLine combination electrode, Plastic shaft, fibre-junction, gel electrolyte, Ag/AgCl-reference system, temp.-sensor NTC 30 kOhm, cylinder membrane, A glass, 1 m fixed cable with DIN- +4-mm banana plug, length 120 mm, 12 mm Ø, -5...+80 °C, 0...14 pH

  • Electrode Stand Cantilever Type, Each

  • Solid State Technology Solid State electrodes have solid, homogeneous sensing elements. They are more rugged and easier to clean than glass or membrane sensors. Polishing strips for the solid state sensors are included with the electrode. Thomas also offers a half-cell version that…

  • labForce® (powered by Thomas Scientific)

    The labForce® pHE-03 pH Electrode is a general purpose, lab or field electrode offering affordable, low maintenance performance for many water applications. Features: Epoxy body with standard 12mm diameter and 120mm length Sealed, gel-filled reference with a double junction …

  • Hanna Instruments

    Meat pH Tester with Built-in Specialized Electrode Accurate and easy to use, the HI981045 pH Tester is ideal for pH measurement during meat processing and is designed to be used with FC097, a high-grade stainless-steel blade. The FC097 blade is sold separately. ±0.05 pH…

  • Dry Contact Technology High accuracy Unlimited shelf life, can be stored dry No pre-conditioning or user maintenance required Robust, rugged and reliable Dry Contact Technology replaces traditional liquid or gel-filled ISE’s. Dry contact electrodes require no…

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