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Electrodes pH Electrodes

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  • 3-in-1 Triode Probes

    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.

  • InLab® Maintenance-Free pH Sensors

    Mettler Toledo

    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,…

  • Combination pH Electrodes


    General Purpose pH Combination (4136L21) AgCl internal reference sealed by ion exchange barrier pH range 0-14 at temperatures from 0° to 100°C Replaceable junction Plastic body 13 mm diameter x 138 mm long. 4136L16 and L21 have removable bulb connector for easy…

  • SenTix® pH Electrodes


    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…

  • Standard Ag/AgCl pH electrodes

    Thermo Scientific Orion

    Ideal for all routine pH measurements. A large variety of quality electrodes for a wide range of applications. Includes specialty pH electrodes for unique or challenging pH measurements.

  • General-Purpose pH Probe


    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…

  • ROSS® Sure-Flow® pH Electrodes

    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…

  • Ammonia Ion Electrode Accessories

    Thermo Scientific Orion

    Accessories: Ionic Strength Adjusting Solution (ISA) adjusts the pH of standards and samples used in ammonia measurements. Ammonia Standard Solutions; 0.1 M ammonium chloride or 1,000 ppm as N. Replacement Membranes or Membrane Caps; Loose membranes for probes with O-Ring membrane holder;…

  • High Performance Ammonia Electrode

    Thermo Scientific Orion

    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…

  • Orion ROSS® 3-in-1 Triodes

    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…

  • ROSS® Ultra Premium pH Electrodes

    Thermo Scientific Orion

    The Orion ROSS® pH electrode, which is recognized as the best pH electrode in the world for difficult samples, is now even better. The Orion ROSS® Ultra has twice the warranty and greater stability than its predecessor. It uses a unique reference system developed by Thermo Scientific that offers…

  • Reference Electrodes For ISEs

    Thermo Scientific Orion

    4215F10 Mercury-free, Ag-AgCl type, with sleeve junction. Designed for use with Thermo Orion ion-selective electrodes as indicated in respective descriptions; usable also with glass electrodes for pH measurement. Range 10 to 100°C. Length 140 mm, diameter 13 mm. Diameter of mounting cap 16 mm. …

  • 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…

  • Fluoride Ion Electrode

    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…

  • ROSS® Combination Electrodes

    Thermo Scientific Orion

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

  • ROSS PerpHect pH Electrode

    Thermo Scientific Orion

    The Orion ROSS® micro pH electrode is specifically designed to measure small samples. This unique design offers greater durability than conventional micro pH electrodes while providing all the performance benefits of a ROSS® electrode. The refillable glass ROSS micro pH electrode is compatible with…

  • Orion™ pH Electrode Filling Solution

    Thermo Scientific Orion

    Use Thermo Scientific™ Orion™ pH Electrode Filling Solution with pH electrodes and reference electrodes. Packaged as five 2 oz. (5 x 60mL) bottles.

  • Chloride Ion Electrode

    Thermo Scientific Orion

    4210N68 Requires Thomas number 4215F60 reference electrode. Includes 760 mm lead. Uses Orion 900002 fill solution, order as 4215F70. Accessories Chloride Standard, 0.1000 ±0.0005M Chloride Standard, 100.0 ±0.5 ppm Ionic Adjustment Solution, Sodium Nitrate Solution Acid and Iodide Reagent …

  • Nitrate Ion Electrode

    Thermo Scientific Orion

    4210S12 Polymer membrane electrodes measure nitrate concentration in the range of 14,000 to 0.1 ppm in soils, plant materials, fertilizers, pickling baths and other aqueous solutions. Other uses listed in Standard Methods. EPA approved for NIPDWR compliance monitoring Optimal temperature range…

  • Repl.Electrode 3-Way Ph/Temp


    All-in-One electrodes feature a built-in temperature sensor for taking readings with Automatic Temperature Compensation (ATC). Single junction electrode for field, clean water, and general purpose applications. Electrode is 12 mm diameter with a 3 foot cable Electrode has a epoxy body,…

  • ORP Standard

    Thermo Scientific Orion

    Calibration solution (4153R53) does not contain hazardous chemicals, is stable for up to one year (unopened) and can be used directly from the bottle with no mixing or diluting.

  • ROSS® Ultra Refillable Glass Triode

    Thermo Scientific Orion

    pH and temperature measurement with one electrode Versatile with chemically compatible glass body, refillable with ROSS 3M KCL solution or a fill solution compatible to your sample type Fast pH response even in samples at varying temperatures Compatible with Mettler-Toledo TM Five and…

  • Orion Redox / ORP / Temp Electrodes

    Thermo Scientific Orion

    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…

  • InLab® pH Sensors for Specific Applications

    Mettler Toledo

    Accept the Challenge The measurement of solid or semi-solid samples is challenging and requires sensors that are robust, ensure proper electrolyte flow and are easy to clean. Sensors with these properties are often requested for food or cosmetic applications. A special membrane glass and…

  • "All-in-One" pH Electrode


    For use with 600 series meters

  • Combination Electrodes


    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…

  • pH Elect. High pH DJES


    This double junction electrode is for most applications, including dirty water, heavy metals and organics applications. It has a wider range for high sodium/high pH applications. Electrode is 12 mm diameter, and has a BNC connector with a 3 foot cable Epoxy body, sealed Includes a…

  • Orion Gel Fill Epoxy Flat Surface Comb pH, BNC

    Thermo Scientific Orion

    Measure the pH of virtually any sample with these Thermo Scientific Orion pH electrodes. Electrodes come with a low cost epoxy body Sealed, gel-filled design means there is little electrode maintenance to perform Single-junction reference means electrodes are suited to most general…

  • pH Electrodes


    pH electrodes for pH-measurement systems. Choose between long lasting fluid electrolytes with sophisticated measuring performance and easy-to-operate gel electrodes. Intelligent electrodes save the calibration data and thus assures full GLP compliance. pH-electrodes with integrated temperature…

  • IntelliCAL™ PHC101 Standard Gel Filled pH Electrode


    IntelliCAL™ PHC101 is a digital, combination pH probe with a non-refillable, gel-filled single-junction reference and built-in temperature sensor. The standard version of this pH probe is available with a 3 or 1 m cable and is intended for laboratory use. The PHC101 probe is ideal for…

  • Economy pH Electrodes

    Thermo Scientific Orion

    Ideal for field, plant, or educational applications Connector type: BNC Waterproof

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