Field pH Meters

Field pH meters, pH testers, and pH electrodes are essential tools for accurately measuring the acidity or alkalinity of various samples in outdoor and laboratory settings. These devices are vital for scientists, researchers, and professionals who require precise pH readings.
Complementing this lineup, chlorine meters, especially digital chlorine meters, offer a specialized function for testing chlorine levels in water, ensuring safety and compliance with health standards. The key benefits of using these instruments include their portability, ease of use, and the ability to obtain immediate, accurate readings in various environments. Digital models provide clear, easy-to-read displays, making data collection more efficient and reliable.
Together, these tools support a wide array of scientific and environmental studies, contributing significantly to water quality monitoring and research efforts.

Thomas carries a large selection of benchtop and portable pH meters for all your pH testing needs. Find the pH Meter or pH Tester best suited to your application.

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  • Professional Multi-Channel Meter with Touch Screen SevenExcellence™ is the perfect choice for applications where maximum measurement accuracy is required. The multi-channel instrument allows measurements of 1, 2 or 3 parameters simultaneously, either in the same or in different samples.…

  • labForce® (powered by Thomas Scientific)

    The labForce® TS-PH200 Portable pH Meter combines advanced digital processing technology and software design, specially designed for all types of professional pH measurements. The meter has a ±0.01 pH accuracy in a range of -2.00-19.99 pH., with 0-100°C Automatic Temperature Compensation…

  • The well-priced pH/mV, conductivity and dissolved oxygen FiveGo portable meters are the perfect choice for a wide range of applications wherever you are. Time is an ever more valuable asset. Thanks to the FiveGo™'s intuitive operation, robust design and extensive memory functions,…

  • Sper Scientific

    Rugged housing with large LCD displaying the parameter being measured together with time, date and temperature (in ºC or ºF). Automatic or manual temperature compensation Automatic or manual ranging Automatic buffer recognition Digital and analog outputs Min/Max and 99 data points …

  • The fermprobe pH electrode with s8 metric cap features a standard s8 detachable cable connector on a metric pg 135 threaded polymer cap the design requires the rotation of the electrode during installation this style of pH fermprobe is the first choice for small autoclavable bench-top vessels all…

  • Reliable pH/mV and Ion measurement for the lab Optimized for pH/mV and ion measurement in the laboratory, at-line, or outdoors, the new Seven2Go Pro S8 portable is designed to provide users with fast quality data, one-handed operation and durability. Robust in design, optimized for…

  • Affordable Benchtop pH Meter with Electrode ST320 for Basic Laboratory Applications. User-friendly bench meter that clearly displays information - with five distinctly marked keys which allow users to operate with minimal training. Designed with a clear, user-friendly interface and the ability to…

  • Compact footprint is over 40% smaller than other benchtop meters Large display permits easier readout viewing Datalogging allows you to store and recall up to 100 data sets The easy-to-use, microprocessor-based pH 700 benchtop meter measures pH, mV, relative mV, and temperature. The…

  • Jenway (Cole-Parmer)

    Simultaneous readout of pH and temperature pH resolution to 3 decimal places 1, 2 or 3 point calibration Automatic or manual buffer selection Storage of up to 32 results RS232 connection to printer or PC via DataWay The 3510 is a versatile, simple to use pH, mV and…

  • Thermo Scientific Orion

    pH/Temperature The Eutech™ Elite pH Spear pocket tester features a spear tip open pore sensor. This rugged and user-friendly tester is ideal for direct measurement of solid or semi-solid samples such as cheese, meat, fruit, bread and more. Used in applications such as hydroponics, food…

  • Convenient Portable pH Meter for Wherever Your Work Takes You After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in the form of a portable pH meter. This portable meter offers convenience, reliability and…

  • Easily toggle between pH, mV, conductivity, TDS, and temperature measurements at the touch of a button Space-saving design takes up less room on the bench than other meters Large display lets you see your measurements from across the lab Conductivity and TDS autoranging chooses the best…

  • Hanna Instruments

    Fast and accurate readings for the cost of a few rolls of litmus paper 3,000 hours of continuous use Large, easy-to-read LCD Range: 0-14 pH; resolution: 0.1 pH; accuracy: ±0.2 pH Manual, two-point calibration Checker 1 testers have a replaceable screw-type combination pH electrode.

  • labForce® (powered by Thomas Scientific)

    Traceable® pens for conductivity, dissolved solids, and salinity provides for conductivity, conductivity/total dissolved solids and salinity. Meters fulfill requirements for CAP, ASTM, NCCLS, CLSI, ACS, CLIA, AOAC, EPA, APHA, AWWA, WEF, USGS, USP, ISO and Federal/State regulations. Waterproof…

  • POCKET PH-METER 0-14 pH (IP67) Display resolution: 0.01 pH Accuracy: ±0.05 pH Automatic Temp. Comp. ( ATC 0+60°C) Self calibration in 2 points ( pH4 / pH7 or Ph 7/ pH10) Use temperature display With buffer solutions pH 4 - pH 7- pH 10 In plastic box with…

  • Sper Scientific

    Highly stable and accurate readings with large LCD display Designed for simple one-hand operation Automatically calibrates to pH 4, 7, 10 buffers and can be adjusted to recognize non-standard buffers as well Features hold function and auto power  

  • Hanna Instruments

    For regular use and harsh environment processing Four measurement ranges Rugged waterproof casing Sodium electrode determines direct concentrations of salt in solutions. Features automatic, 2-point calibration and fixed temperature compensation at 25°C (77°F), low battery…

  • Our benchtop and portable meters are powerful instruments on their own. With additional peripherals however, you can enhance and customize your measuring solutions. Various interfaces such as electrode arms, modular expansion and stirrers allow you to connect multiple peripherals according to…

  • Mettler Ingold pH Probe w/ VP Connector. Specifications: Mettler Toledo Ph Probe – Inpro Seris Low-Maintenance Ph-Electrodes With Vario Pin Connection Mounting Diameter 12mm Insertion Length 225mm Ph Range 012 Temperature Range 140c Pressure Resistance Bar Up To 4 Bar…

  • 3 meters in 1! This meter allows you to measure pH, EC (conductivity) and TDS with just one instrument and one single probe! The AG900, with a conductivity range that goes up to 6.00 mS/cm and the TDS up to 4000 ppm is ideal for testing in crop production. Soil and well water pH that is too…

  • Hanna Instruments

    Hanna Instruments is proud to introduce the world’s most innovative pH, EC, and DO meter... edge ® . edge ® is thin and lightweight, measuring just 1⁄2” thick and weighing less than 9 ounces. edge ® has an incredibly wide viewing angle, 5.5” LCD and a…

  • Highly Reliable and User-Friendly pH Benchtop Meter with Electrode (ST310) for Standard Laboratory Applications with multifunctional touch keypads, AB33PH makes measurement simple and fast within 3 steps. The intelligent i-Steward monitors the condition of electrodes for accurate results. Auto…

  • Thermo Scientific Orion

    Perform basic pH measurements quickly and reliably with Thermo Scientific™ Orion™ Basic Electrodes, for use with Orion™ Russell meters.

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    Thermo Scientific Orion

    Stir samples for better accuracy without the difficulty of a separate stir plate and stir bar. Orion stirrer probe with paddle, for benchtop Orion Dual Star and VERSA STAR series meters Provides automatic solution stirring with direct control from Thermo Scientific™ Orion…

  • Get better testing through better design with the Thermo Scientific™ Orion™ Star A and Versa Star™  Electrode Holder. The Orion Star A and Versa Star electrode holder head has identifiable slots and offers the following benefits: Adjustable probe heights reduce…

  • Accessories for pH Plus Direct Meter

  • The EcoSense® line of compact, handheld instruments provides the most accurate data in the most affordable format. The instruments feature an easy-to-use interface, one-hand operation, IP67 waterproof case, and low cost of ownership over the life of the product. The pH100A measures pH, mV/ORP…

  • Milwaukee Instruments

    Standard portable meters with no frills! Milwaukee’s low cost durable meters for quick and reliable measurements. Milwaukee’s Standard meters are manufactured to be easy to use, practical and accurate. Ideal for the classroom, laboratory or for general field use. MW500…

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    Milwaukee Instruments

    With Milwaukee's MC Controllers you can monitor and control pH and/or ORP levels. The Milwaukee Instruments "MC" Controllers have a user selectable set point and a visual "Power Activated" LED notification light. Power to the controller box is turned on when the reading…

  • An Advanced, Research-Grade Benchtop pH Meter with Electrode Offering Accurate, Repeatable Results with selectable resolution from 0.1 to 0.001 and an intelligent i-Steward system, AB41PH has high resolution and consistent accuracy. Equipped with a 6.5-inch large LCD display and a touch keypad,…

  • Milwaukee Instruments

    With Milwaukee's MC Controllers you can monitor and control pH and/or ORP levels. The Milwaukee Instruments "MC" Controllers have a user selectable set point and a visual "Power Activated" LED notification light. Power to the controller box is turned on when the reading…

  • Double your measurement capabilities with the Thermo Scientific™ Orion™ Dual Star™ pH and ISE Benchtop Meter and record accurate and reliable pH, ion concentration, mV, ORP and temperature measurements on two available meter channels, ideal for high throughput pH and ion analysis…

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