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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    Oakton

    Achieve professional results at an economical price! The microprocessor-based pH 6+ meter gives you high accuracy and reliability. Use this meter to take pH, mV and temperature measurements. The millivolt readout lets you take ORP readings. Meter includes a protective rubber boot that also acts as…

  • Best value for an IP67-rated waterproof meter Intuitive, user-friendly icons--electrode status displays pH slope Grip-Clip holder quickly and easily secures the electrode to your beaker Expanded data logging for up to 150 data sets mV offset for calibration of ORP standards,…

  • 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…

  • Jenway (Cole-Parmer)

    Thomas Nos. 1200R17 and 1200R18 Ideal for quality control and GLP applications Up to 3 decimal place resolution 1, 2 or 3 point pH calibration Automatic or manual buffer selection Multiple language options Storage of up to 500 results RS232 connection to printer or PC or…

  • The EcoSense® pH100M handheld instrument provides accurate and repeatable pH, mV, and temperature measurements in an affordable format. Compared to the EcoSense® pH100A, the pH100M features extended memory and simple data transfer with a micro-USB port. Features of the pH100M include:…

  • Thermo Scientific Orion

    The Thermo Scientific Orion Star A212 Conductivity Benchtop Meter is the ideal choice for any lab. Get the information you need quickly and easily from the large, backlit graphic LCD display. Informative display shows conductivity/ TDS/salinity/resistivity and temperature along with time,…

  • Save money by replacing sensor, not the tester Large easy-to-read LCD features three-color backlight  Simple to calibrate with automatic standard recognition Rugged IP67-rated housing is waterproof, dustproof, and floats in water with sensor cap on Leakproof cap with fill…

  • pH/Cond 3320:  Professional pH/conductivity meter with 2 inputs (DIN, 8 pin socket), backlit graphic display, for mobile application with data logger and USB interface. Single instrument including short instruction manual, CD-ROM and batteries, cable. pH/Cond 3320  SET 2: …

  • Thomas No. 1197F28: pH Sensor, with o-ring, to be used with HI 9829 and HI 98290 series multiparameter meters Thomas No. 1197F29: pH/ORP sensor, with o-ring, to be used with HI 9829 and HI 98290 series multiparameter meters Thomas No. 1197F30: Ammonium ISE sensor, with o-ring, to be…

  • The next step in the evolution of OHAUS’ original Starter Series, the all-new AQUASEARCHER™ AB33EC bench meter is designed with reliable measurement and user-interface in mind. The i-Steward ensures repeatable and consistent measurement accuracy for optimal peace of mind. The 6.5 inch…

  • Rugged, waterproof, and dustproof with an IP67 rating for use in any environment Nonslip ergonomic design for comfortable handling Easily view measurements with large monochrome LCD with white LED backlighting Download and analyze data with USB output and phono jack printer connections Take it…

  • 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…

  • 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…

  • labForce® (powered by Thomas Scientific)

    The labForce® ISE500 Benchtop pH/ISE Meter features automatic calibration, automatic temperature compensation, data storage, timing measurement, clock display, RS-232 output, function setting and self-diagnose. It has three measuring modes for your specific measuring needs: stable measurement…

  • Hanna Instruments

    Hanna Instruments is proud to introduce the world’s most innovative pH/ORP meter: edge®. edCytiva groundbreaking design is the culmination of Hanna’s vision, design capabilities, integrated production and world class R&D. edge is a single meter that can measure pH and ORP…

  • Sper Scientific

    Reliable DO readings at a reasonable price. Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries. The back-lit display simultaneously displays dissolved oxygen (in % or mg/L) and temperature readings…

  • 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…

  • Hanna Instruments

    HI6221 is a streamlined benchtop meter with a large touch screen display, comprised of a housing and an integrated pH / ORP measurement module. Compact and easy to operate, the benchtop meter is delivered with Hanna Instruments' HI1131B double junction combination pH electrode, together with…

  • quick-ship

    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…

  • The SevenGo Duo pro™ pH meter combines maximum measurement accuracy and a range of functions that incorporate user-friendly operation with exceptional safety. SevenGo Duo pro™ pH meters are used in regulated sectors for the pharmaceutical, chemical, cosmetics and food & beverage…

  • Thermo Scientific Orion

    The Thermo Scientific™ Eutech™ Elite pH pocket tester features a simultaneous display of pH and temperature. One of the most common scientific measurements in the world today is pH, which measure the alkalinity and acidity of a liquid. Common industries that measure pH range from…

  • Oakton

    High ±0.01 pH accuracy at economical prices Reads pH and temperature Automatic Temperature Compensation (ATC) All push button operation Three-point pH calibration Auto buffer recognition Hold function; Auto-off Use with most pH electrodes with BNC connectors …

  • The Thermo Scientific™ Expert pH Pocket Tester is designed for on-the-go measurements of pH and temperature. The Expert pH Pocket Tester is best used in applications such as hydroponic gardening, aquaculture, agriculture, pools, cooling towers, and more! Large 4 digit double line…

  • Hanna Instruments

    The pHep ® 4 tester is for users that require the greatest accuracy and features while staying economical. This model has BEPS as well as user selectable automatic shut-off, replacable pH electrode cartridge, stability indicator and automatic calibration. Waterproof and designed to…

  • The Thermo Scientific™ Expert CTS Pocket Tester is designed for on-the-go measurements such as – Conductivity, TDS, Salinity, Temperature and other related electrochemistry measurements. The Expert CTS Pocket Tester is best used in applications such as environmental monitoring,…

  • Measure pH, mV (ORP), ISE and temperature accurately in the laboratory with the YSI pH 1320 or 1320P with built-in printer. The TruLab pH/ISE 1320 benchtop meter is the ideal laboratory instrument for reliable measurements with automatic documentation for GLP compliance. The 1320 benchtop is…

  • After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in a line of pen meters that provide accurate measurement of pH, oxidation-reduction potential (ORP), conductivity, s

  • 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…

  • All three parameters, plus temperature, measured and displayed simultaneously! These top-of the-line waterproof meters offer features that are typically found on much more expensive models. The IP67-rated housing allows use in dirty and wet environments without harm to the meter. Datalog up…

  • Metrohm

    In addition to pH, voltage and temperature measurement, the 780 pH Meter also offers an automatic stirrer control, a multi-point calibration with up to nine buffers, a method memory and various monitoring functions. The automatic pH electrode test in conformance with GLP permits objective…

  • Expanded range, resolution and accuracy, increased memory, and advanced communications These waterproof handheld meters feature a –2.00 to 19.99 pH range expandable to 0.001 pH resolution. Combined with accuracies up to ±0.002 pH, these meters provide a new benchmark in our pH…

  • Measure pH, conductivity, and temperature at the same time! Measured parameter and temperature shown on display at same time Convenient, compact design with large display Stability, calibration, and low-battery indicators Waterproof and dust-resistant IP57 rating – great for use…

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