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.

pH & Ion Electrodes

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  • Electrode Care

    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 storage solution with...

  • InLab® pH Sensors for Fast Results

    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 Max Pro ISM:...

  • High Performance Ammonia Electrode

    Designed to meet the demanding needs of drinking water and wastewater applications Accurate results down to 0.01 ppm Linear electrode response down to low detection limits Response time of 1 minute in sample concentrations of 1 ppm and higher New wastewater applications developed using known...

  • InLab® Maintenance-Free pH Sensors

    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, the...

  • pHE-01 Basic Combination pH Electrode

    labForce® (powered by Thomas Scientific)

    The labForce® pH-01 Combination pH Electrode is an economical choice for a reliable combination pH electrode. Ideal for regular water solutions' pH measurement in scientific research, environmental monitoring, and quality control. Measurement Range: 0–14 pH, 0–80°C...

  • PHE-14 Glass Combination pH/Temp Electrode for Semi-micro Samples (>0.2mL)

    Unique Glass Membrane - PHE-14 pH electrode uses a semi-micro cylindrical glass membrane (6mm in diameter), making small-sample pH testing easier than ever, and can be tested in high-temperature samples (up to 212°F). Long-Life Reference System - composed of a glass, AgCl, and a reference silver...

  • PHE-16 Glass Combination pH Electrode for Strong Base Solutions

    Unique Glass Membrane - The PHE-16 pH Electrode uses a special H glass membrane, with better accuracy and repeatability in strong base solutions; the hemispherical sensor is built tough and highly resistant to general impact. Silver Ion Trap Reference System - The PHE-16 pH Electrode uses a Silver...

  • PHE-19 Glass Combination pH Electrode for Low Temperature Solutions

    The PHE-19 pH electrode uses a low-impedance glass membrane, especially suitable for low-temperature sample testing. The conical sensor tip is highly resistant to general impact, and has a faster response rate and better repeatability. Low-impedance glass membrane, specially designed for...

  • Thomas Brand Copper Ion Electrodes

    labForce® (powered by Thomas Scientific)

    Solid State Technology High accuracy Low maintenance 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 with the electrode....

  • Thomas Brand Nitrite Ion Electrodes

    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. Thomas...

  • Thomas Brand Silver/Sulfide Ion Electrodes

    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 requires a double...

  • Orion Redox / ORP / Temp Electrodes

    The Orion 9179BNMD and Orion 9180BNMD consist of a platinum redox sensor, a silver/silver chloride internal reference systems and a built-in thermistor for Automatic Temperature Compensation (ATC). Both models have the capability to measure ORP and Temperature simultaneously without a separate...

  • Thomas Brand Cyanide Ion Electrodes

    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 requires a single...

  • PHE-11 Glass 3-in-1 pH/Temp Electrode for Low Ion-Concentration Samples

    Moveable Sleeve Junction - The PHE-11 pH Electrode/Probe is easy to clean, especially suitable for low ion concentration solutions. The infiltration rate of the electrolyte is determined by the tightness of the sleeve, which can be customized by users to ensure the best performance in every specific...

  • Thomas Brand Chloride Ion Electrodes

    labForce® (powered by Thomas Scientific)

    Solid State and Dry Contact Technology High accuracy Low or no maintenance 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...

  • ATC Probes

    Thermo Scientific

    Orion Automatic Temperature Compensation (ATC) probes transmit a signal to the pH meter, which automatically corrects pH measurements for variation in electrode slope due to temperature change.

  • pHE-08 Micro pH Electrode

    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 150mm length...

  • Thomas Brand Bromide Ion Electrodes

    labForce® (powered by Thomas Scientific)

    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 with the electrode....

  • PHE-10 Blade pH Electrode, stainless steel sheath and blade, ideal for meats

    The PHE-10 Blade pH Electrode uses a durable food-grade stainless steel sheath and blade, solid electrolyte, and long-life reference system, making the probe hard to contaminate and maintenance-free. Ideal for measuring pH of meat such as fish, meat, and other meat products. The electrode uses a BNC...

  • Thomas Brand Calcium Ion Electrodes

    labForce® (powered by Thomas Scientific)

    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 pre-conditioning. Simply place...

  • Thomas Brand Ammonium Ion Electrodes

    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 pre-conditioning. Simply place...

  • PHE-12 Glass 3-in-1 pH/Temp Electrode for Dairy

    labForce® (powered by Thomas Scientific)

    Silver Ion Trap Reference System plus Protelyte Electrolyte - The PHE-12 pH/Temperature Electrode uses a Silver Ion Trap reference system and Protelyte reference solution. On top of the Long-Life reference system, a silver ion trap is added to prevent the junction from being blocked or contaminated...

  • Thomas Brand Potassium Ion Electrodes

    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. Thomas...

  • PHE-17 Glass Combination Micro pH Electrode (4mm) for Samples >30 Ml

    Unique Glass Membrane - The PHE-17 pH electrode uses a micro cylindrical glass membrane (4mm in diameter), making micro-sample pH testing easier than ever, and can be tested in high-temperature samples (up to 212°F). The stainless steel protective cover ensures the durability of the slim glass tube....

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