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.

  • 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…

  • Orion Total Alkalinity Test Kit

    Thermo Scientific Orion

    Save time by eliminating additional equipment set-up, titrations and calculations. The Thermo Scientific™ Orion™ Total Alkalinity Test Kit provides two-step direct measurement of total alkalinity and pH using a pH electrode. Direct reading of total alkalinity from 0 to 200ppm as…

  • 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…

  • 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.

  • Orion Rdo Probes

    Thermo Scientific Orion

    No membranes to change - just replace the sensor once a year Probe stores wet or dry

  • 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…

  • Electrode Extension & Adapter Cables

    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…

  • Orion No Cal® pH Electrodes

    Thermo Scientific Orion

    The Orion No Cal electrode will hold its calibration to ± 0.10 pH unit for one year, as long as the simple storage and care requirements are met. These electrodes utilize a unique reference system that allows for quick and accurate measurement of pH in the field. Just take it out of its…

  • 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.

  • 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 …

  • Orion Filling Solution

    Thermo Scientific Orion

    Thermo Scientific Orion filling solutions for use with pH electrodes and reference electrodes. Filling solutions are packaged as five 2 oz. (5 x 60mL) bottles.

  • 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…

  • Star Series Adapters

    Thermo Scientific Orion

    Adapters for the Orion 3-, 4-, and 5-Star Series meters.

  • Micro-pH Electrode, Long, Thermo Orion 9810BN

    Thermo Scientific Orion

    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.

  • Temperature Probes

    Thermo Scientific Orion

    Specifically for Thermo Orion A+ series meters Enables use of any BNC type electrode without temperature sensor (triode) to take advantage of meter’s automatic temperature compensation.

  • Micro-pH Combination Electrode, NMR, Thermo Orion 9826BN

    Thermo Scientific Orion

    Immersion depth is 2 mm, designed for NMR cells. pH range is 0-14. Temperature range is -5 to 100°C. Dimensions: 228 mm x 2.5 mm; tip diameter: 2.5 mm. Type reference: Ag/AgCl.

  • ROSS® Ultra reference half-cell electrode with glass body and pin tip connector

    Thermo Scientific Orion

    Provides superior measurement stability, faster response, greater accuracy, longer life and more reproducible results when incorporated in ROSS electrodes. pH range: 0 to 14 Temperature range: 0° to 100°C ROSS® Internal reference Ceramic Junction 0.01 pH…

  • Potassium Ion Electrode

    Thermo Scientific Orion

    Model 97-19, Plastic Membrane, Sure-Flow, Combination ISE Optimal temperature range 0 to 40° C Polymer membrane electrode measures potassium in aqueous solutions from 39,000 to 0.04 ppm. Includes easily replaced cat no. 971901 plastic membrane electrode modules and 60 mL of refill…

  • 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…

  • AquaPro Professional pH Electrodes

    Thermo Scientific Orion

    The patented reference system and the double junction design keeps silver ions from contacting the sample. These electrodes are non-refillable, offering the benefits of ease of use and minimal preparation.

  • Waterproof pH Analysis Accessories

    Thermo Scientific Orion

    Waterproof pH analysis accessories are for use with portable pH meters.

  • 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.

  • Orion™ 2001SC ROSS™ Combination pH Electrode

    Thermo Scientific Orion

    Take high purity measurements with the highest accuracy and precision using the Thermo Scientific™ Orion™ 2001SC ROSS™ Combination pH Electrode. Combining pH sensing and reference electrodes, 2001SC provides a fast response for online pH electrodes. The Thermo Scientific…

  • Orion Phuture Sureflow Ifs, 5 X 50 ml

    Thermo Scientific Orion

    Filling Solution for pHuture pH Electrodes.

  • Orion™ Online ATC Probes

    Thermo Scientific Orion

    Take pH measurements that are automatically corrected for variation in electrode slope due to temperature change. The Thermo Scientific™ Orion™ Online ATC Probe features stripped, non-terminated ends and an unbreakable stainless-steel body to withstand rigorous use. Designed for…

  • Nitrate Sensing Module

    Thermo Scientific Orion

    Replacement Module for Nitrate Half-Cell Electrode (9307BNWP).

  • 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

  • pH Electrode Stand

    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…

  • 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…

  • Orion Waterproof pH Triode

    Thermo Scientific Orion

    Triode, gel-filled combination electrode with epoxy body for durability Waterproof E DIN connection with a 1 m cable and banana plug connectors Measures pH and temperature with built-in ATC Ag/AgCl (silver/silver chloride) electrolyte for less noise than gold or silver electrodes pH…

  • 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…

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