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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    Thermo Scientific Orion

    Ross® Sure-Flow Easy cleaning in waste-waters, food samples, colloids, soils and slurries Has optimum flow rate for high purity waters, drinking waters and buffers Produces fast, stable responses in samples that vary in temperature pH range is 0-14 over a temperature range of…

  • 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, dissolved oxygen (DO), and temperature…

  • Solutions to clean, store and fill electrodes Extend the life of your electrodes and maintain accurate readings Use cleaning and storage solution with any pH or ORP electrodes Electrode storage solution keeps pH/ORP electrode bulbs moist for faster, more accurate readings. Use…

  • 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…

  • Oakton combination electrodes are available in a variety of styles to meet the needs of your application. Epoxy electrodes are impact resistant and provide exellent durability for field applications. Glass electrodes withstand aggressive chemicals. Choose junction and tip style based on the needs…

  • 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. …

  • labForce® (powered by Thomas Scientific)

    The labForce® pHE-08 Semi-Micro Electrode is a general purpose, lab or field electrode offering affordable, low maintenance performance for applications needing a small diameter body housing (6mm) and is also longer than standard (150mm). Features: Plastic body with 6mm diameter and…

  • The Ag/AgCl combination reference electrodes have an impact-resistant epoxy body. Electrodes provide a fast, stable response and are ideal for prolonged readings. Gel-filled design requires virtually no maintenance. 127 mm L x 12 mm diameter with maximum 176F (80C) temperature. Combine…

  • Electrode Stand Cantilever Type, Each

  • 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…

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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…

  • Sealed, single-junction electrode for general-purpose applications Epoxy body for impact resistance and durability Bayonet Neill-Concelman (BNC)-connected combination reference and measuring cell, for ease of use and to provide tight coaxial cable connections Small (6 mm) diameter for…

  • pH combination electrode with plug head, Glass shaft, platinum junction, electrolyte KCl 3 mol/l, Silamid® reference system, sphere membrane, A-glass, length 170 mm, 12 mm Ø, -5...+100 °C, 0...14 pH

  • All-in-One double junction electrode features a built-in temperature sensor for taking readings with Automatic Temperature Compensation (ATC). For most applications, including dirty water, heavy metals and organics applications. Electrode is 12 mm diameter with a 3 foot cable Refillable…

  • Solid State Technology Low maintenance High accuracy Robust, rugged and reliable 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…

  • 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

  • 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…

  • 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…

  • TRUEscience Item No. 1205230 TRUEscience Epoxy Redox Combination Electrode S7. Ceramic single junction silver/silver chloride reference Electrode only with electrode soaker bottle and storage solution 1x TRUEscience Epoxy Redox Combination Electrode with S7 connector 1x soaker bottle…

  • The FC2020 is a digital pH electrode with a built-in temperature sensor. This application specific electrode is designed for measuring pH in food related products and features a built-in microchip that stores sensor type, serial number and calibration information. Features a single…

  • The Thermo Scientific Orion Storage Sleeve and Base is for use with pH electrodes that are 120mm or less in length that have a diameter of 12mm. The sleeve protects your electrode from breakage when not in use and will not tip, due to the weighted removable base. As an additional convenience, the…

  • labForce® (powered by Thomas Scientific)

    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…

  • pH-combination electrode with 1 m fixed cable, Microelectrode, glass shaft, platinum junction, electrolyte KCl 3 mol/l, Ag/AgCl-reference system, sphere membrane, A-glass, DIN plug, tapper NS 7.5, length 96 mm, 5 mm Ø, -5...+100 °C, 0...14 pH

  • 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…

  • Always Ready Well-equipped for challenging tasks. The highly robust PEEK shaft in combination with the open junction makes the InLab Expert both resilient and easy to handle. Its solid reference electrolyte requires no refilling and is always ready for use. If highest performance is expected,…

  • 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…

  • 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…

  • Nothing is Impossible The more precious or limited the sample, the greater the challenge to use it for analysis. The narrow sensor shaft of micro pH sensors fits in nearly every sample container and enables measurements of sample volumes down to the lower μL ranges. InLab Flex-Micro:…

  • 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…

  • High quality cables with a variety of electrical connectors to retrofit with existing pH / ORP monitors.

  • Mettler Toledo

    Reach New Depths The extra-long shaft allows measurements in deep vessels, barrels or pilot reactors. InLab Reach 225: A glass-body, combination pH electrode with S7 screw head and 225 mm long shaft for general application. InLab Reach 425: A glass-body, combination pH electrode…

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    Thermo Scientific Orion

    4210F12 For determination of fluoride ion activity in concentrations from saturated to 10 -6 M (0.02 ppm) Method approved by ASTM for water, drinking water, wastewater and seawater brines and it is approved by EPA, Standard Methods and AOAC for feeds Range saturated to 0.02 ppm Requires…

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