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…

  • pH Sensor Check™; Allows users to check electrode status at any time Multi-level LCD display; Display the current measurement simultaneously with the current temperature On-screen tutorial messages Automatic Temperature Compensation Automatic one or two point calibration HI…

  • 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…

  • 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…

  • 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 …

  • Select meter with combination pH/CON probe or separate pH and conductivity probes Intuitive, user-friendly icons—electrode status displays pH slope Grip-Clip electrode holder quickly and easily secures electrode to side of beaker or container USB or RS-232 output for up to 500…

  • LaMotte

    Microprocessors have enabled meter manufacturers to combine many features into smaller designs with better accuracy. The 5 Series handheld pH meter includes electrode and temperature probe, and is available with or without a carrying case. Push button operation Three point…

  • Features three-point push button calibration High accuracy ATC Self-diagnostic messaging Non-volatile memory Double-junction polymer sensor Waterproof pHTestr 30 is great for outdoor applications such as taking pH measurements in lakes and streams. Designed to float in…

  • The ProQuatro was designed with the 4-port Quatro cable in mind. Combine 4 sensors on a single cable for comprehensive multiparameter sampling to measure temperature/conductivity, DO, and any two ISEs among pH, ORP, ammonium, chloride, or nitrate. Pairing the ProQuatro with the 4-port cable creates…

  • 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,…

  • 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…

  • Great general-purpose meter for laboratories where GLP data-management is required Large display with bright backlight Dynamic reading stability indication indicates when your measurement is stable Up to 500-point memory with date-time stamp for GLP Password protection for both setup…

  • The Milwaukee MW180 5-in-1 MAX pH/ORP/EC/TDS/NaCl/Temp. Logging Bench Meter has won fans around the world with its reliable, fast and simple operation as well as its tough, sleek design and small benchtop footprint. It is accurate to ± 1% of reading for EC/TDS/NaCl and up to +/-0.002…

  • The pH/EC1030A is designed for quick, accurate results in an economical platform. The pH/EC1030A is the perfect instrument for spot sampling of pH, conductivity, total dissolved solids (TDS), salinity and temperature in applications such as wastewater, surface water, aquaculture, hydroponics,…

  • ORP Probe for Professional Plus Handheld Multiparameter Meters. For lab-grade and field applications Easy user-replaceble sensor allows for quick sensor replacements if needed Measure ORP (oxidation reduction potential), or redox, quickly and easily with the 1002 sensor

  • Extremely versatile—the meter automatically recognizes which sensors you plug in so you can easily switch parameters whenever you want Eliminate downtime with smart sensors that feature built-in calibration and measurement information Rugged, waterproof and dustproof housing with an IP67…

  • 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…

  • Built-in Smart chip offers advanced functions and features to a stick style pH meter not found anywhere else RENEW feature that tells you when it's time to replace your pH electrode CAL feature that tells you when it's time to recalibrate your meter Flat Surface pH electrode that is…

  • Hanna Instruments

    Replacement ink cartridge for bench meters with built-in printer (HI 122).

  • Automatically recognizes pH buffer standards Large LCD dual-line display shows pH and temperature readings simultaneously Rugged IP67-rated housing is waterproof, dustproof, and floats in water Leakproof cap with fill line functions as a sample/calibration and hydrating cup …

  • 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. MW102 is a…

  • Bellco Glass

    Specifications: Cable Has Ak9 Probe Connection And Bnc Controller Connection. Size: 10"

  • labForce® (powered by Thomas Scientific)

    The labForce® TS-WW200 Portable pH Meter is designed for professional pH measurement of wastewater, emulsions, and suspensions. The equipped 3-in-1 POM pH/Temp. Electrode uses Polymer electrolyte, Long-Life reference system, and a patented pH/temp. dual sensor structure, making precise…

  • The YSI foam fitted carrying case is compatible for use with EcoSense pH100, DO200 and EC300 meter models. It is made of sturdy material which ensures durability and long lasting usage.

  • 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 portable WTW ProfiLine meter series is available in three (3) series versions, the 3110/3205-Basic series, 3210-Professional series and 3310-Advanced series, each with a distinct level of sophistication for the independent measurement of pH, conductivity, or dissolved oxygen. All versions have…

  • 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: …

  • Measure pH, mV (ORP) and temperature accurately in the laboratory with the YSI pH 1310 or 1310P with built-in printer. The TruLab pH 1310 benchtop meter is the ideal laboratory instrument for reliable pH/mV measurements with automatic documentation for GLP compliance. The 1310 benchtop is an…

  • 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…

  • Mettler Toledo

    Robust in design, optimized for one-handed use, and comprising an intuitive menu structure, the Seven2Go portables offer quality pH measurement for laboratory, at-line, and outdoor environments. Simple Menu - Intuitive Operation Seven2Go's new intuitive menu guarantees…

  • Thermo Scientific Orion

    Get the readings that you need where you need them with the Thermo Scientific Orion Star A221 pH Portable Meter. The large, backlit graphic LCD display shows pH/mV/RmV and temperature along with electrode status, time, date and calibration points. Anyone can use this meter with its plain…

  • Measures multiple parameters Stores up to 25 data sets Waterproof to IP67 The PockeTester pH/Conductivity tracer measures five parameters including conductivity, TDS, salinity, pH and temperature using one electrode. Units of measure are pH, µS, mS, ppm, ppt, mg/L, g/L,…

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