pH Electrodes

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  • 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…

  • The PHE-09 Spear pH Electrode has durable food-grade stainless steel sheath, solid electrolyte, and long-life reference system, making the probe hard to contaminate and maintenance-free. Ideal for professional soft-solid food's pH measuring such as cheese, bread, fruit, sushi rice, meat, etc. The…

  • 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…

  • Triode pH Combination Electrode

    Thermo Scientific Orion

    Combination pH and ATC in a single barrel pH range: 0-14 Temperature range: 0-90°C Recommended for general purpose use. Built-in thermistor for automatic temperature compensation. Useful for field pH measurements with Thermo Orion portable pH meters. BNC type connector. ATC…

  • 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…

  • pHE-04 Glass Combination pH Electrode

    labForce® (a Thomas Scientific Brand)

    The labForce pHE-04 Combination pH Electrode is ideal for precise regular water solutions pH measurement in scientific research and quality control. This electrode is compatible with TRIS buffer solutions. Its blue hemispherical glass membrane has a faster response time, better repeatability,…

  • pHE-08 Micro pH Electrode

    labForce® (a Thomas Scientific Brand)

    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…

  • Orion Phix Adjustor 5 Pack

    Thermo Scientific Orion

    Sample well water, rain water, distilled/deionized water, boiler feed water, process water and more with the Thermo Scientific™ Orion™ pHISA™ Adjustor. It offers fast, accurate pH results in high purity and low ionic strength waters. Increases measurement accuracy …

  • 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…

  • pHE-01 Basic Combination pH Electrode

    labForce® (a Thomas Scientific Brand)

    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…

  • Built-in temperature sensor lets you take ATC readings with a single probe Includes a FREE electrode saver bottle to extend electrode life Feature a BNC connector for pH and a waterproof 6-pin connector for temperature All-in-One Waterproof electrodes feature a built-in…

  • 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…

  • Keep chloride analyzers well-supplied and ready for use with the Thermo Scientific™ Kits and Accessories for Orion™ 2117XP Chloride Analyzers. Choose from the reagent-less consumables kit, reagent bottle adapter, chloride calibration kit or electrode kit.

  • Long-Life Reference System - The PHE-13 pH electrode uses a long-life reference system, composed of a glass, AgCl and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It…

  • 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…

  • PHE-15 Glass Combination pH Electrode for Strong Acid Samples

    labForce® (a Thomas Scientific Brand)

    Unique Glass Membrane - The PHE-15 HF glass membrane, which has a faster response rate, better repeatability in strong acid samples, and resistant to hydrofluoric corrosion. Silver Ion Trap Reference System - The PHE-15 pH electrode uses a Silver Ion Trap reference system. On top of the Long-Life…

  • 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…

  • 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.

  • Electrode Reference Solution

    SP Wilmad-LabGlass

    Calomel Reference Electrodes utilize a 3M potassium Chloride (KCl) solution saturated with Silver Chloride (AgCl). Use it to fill or replace reference solution in any pH or other electrode which incorporates a Calomel Reference.

  • 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…

  • 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…

  • Calcium Ion Electrode

    Thermo Scientific Orion

    4210B10 Optimal temperature range: 0 - 40°C Constructed with a clog-free Sure-Flow junction. Includes 60 mL of refill solution. Uses easily replaceable 4210B03 plastic membrane module. 4210B13 Highly selective for calcium over other divalent cations Polymer-membrane electrode measures…

  • 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…

  • Inlab Power Pro-Ism

    Mettler Toledo

    The new InLab® Power Pro ISM uses the SteadyForce™ system, ensuring a connection to the measurement medium. With the InLab® Power Pro ISM, you can concentrate on the actual measuring. The dual channel portable meters SevenGo Duo™ and SevenGo Duo pro™, have the ability…

  • 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…

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

  • 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.

  • 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…

  • ATC Probes

    Thermo Scientific Orion

    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-18 Glass Spear pH Electrode for Semi-Solid Samples,

    labForce® (a Thomas Scientific Brand)

    Long-Life Reference System - The PHE-18 pH electrode uses a long-life reference system, composed of a glass, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It…

  • The pH2000 has a double junction reference design to prevent reference fouling by heavy metals and other sample contaminants, low maintenance sealed gel reference design, durable Ultem® body.

  • pHE-07 Premium Flat pH Electrode

    labForce® (a Thomas Scientific Brand)

    The labForce pHE-07 Flat pH Electrode is a general purpose, lab or field electrode offering affordable, low maintenance performance for water applications where a flat shaped pH sensor is more suitable. Features: Plastic body with standard 12mm diameter and 120mm length. Flat pH…

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