Field pH Meters

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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  • 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

    pH/ORP/ISE, EC/TDS/Resistivity/Salinity/Seawater Specific Gravity, Turbidity, DO, Temperature and Atmospheric Pressure Rugged, waterproof and easy to use, the HI 9829 is the ideal meters for field measurements of lakes, rivers and seas. Both meters display 1 to 12 parameters simultaneously…

  • labForce® (powered by Thomas Scientific)

    The labForce® TS-SS200 Portable pH Meter is designed for professional pH measurement in test tubes and small liquid samples (>0.2mL). The 3-in-1 POM pH/Temperature Electrode adopts a Long-Life reference system, and a unique cylindrical semi-micro sensor, making precise small sample pH…

  • The EcoSense ® pH10A pen-style instrument provides an ultimate feature set over similar competitive models. The pH10A features an easy-to-use graphic interface, simple one-hand operation, memory, and low cost of ownership over the life of the product. The easy, user-replaceable electrode…

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    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 …

  • This versatile meter has a large, color graphic LCD display. The informative display shows readings, connections, time, date, sample ID, user ID and calibration information.  Select from five modules to customize the four channels as you need it - it's versatile for you…

  • 3 meters in 1! This meter allows you to measure pH, EC (conductivity) and TDS with just one instrument and one single probe! The MW801 with a Conductivity range that goes up to 1990 µS/cm and TDS range that goes up to 1990 ppm is an ideal tool for drinking water measurements. MW801…

  • Backlit, rugged waterproof meter is ideal for any environment 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 data sets …

  • Thermo Scientific Orion

    Thermo Scientific Orion Star A211 pH benchtop meters are easy to use, dependable laboratory meters with advanced features and functions. Selectable read modes and stability indicator give you flexibility and control over your testing. All critical data is shown with your measurements including…

  • Electrodes 4258A53 electrode allows ORP measurements to be performed with all WTW pH/mV meters. Requires 4258A57 cable for use with Inolab Meters.

  • 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 …

  • Exclusive Oyster design can be used in the lab or in the field. Large LCD built into adjustable "flip up" cover displays pH or mV and Temperature simultaneously. Stores/recalls 25 labeled readings. Auto or manual Temperature compensation. 5 point buffer recognition. Includes meter, neck…

  • Sper Scientific

    Automatically log up to 4,000 readings or manually record 99 readings, each with pH, mV (supports ORP), °C or °F, time and date Review all data on the meter’s display or download with the included software Three point calibration with automatic buffer recognition indicating the number…

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    Milwaukee Instruments

    The pH600 is a pH tester can be used in many different applications and is considered an excellent starter unit for digital pH measurement. The calibration procedure is very simple and fast. This tester has 1 point manual calibration, ±0.1 pH accuracy and a range of 0.0 to 14.0 pH. The…

  • 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.

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    Mettler Toledo

    The well-priced pH/mV and conductivity FiveEasy and FiveEasy Plus benchtop meters are the perfect choice for a wide range of laboratory applications. Time is an ever more valuable asset. Thanks to the Five's intuitive operation, sleek design and simple data export functions, you can…

  • 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  

  • Milwaukee Instruments

    pH55 IP65 Waterproof pH tester with Large dual-level LCD that displays pH and temperature (°C or °F). The large display shows readings in an extended range from -2.0 to 16.0 pH and simultaneously shows temperature from -5.0 to 105.0°C or 23.0 to 221.0°F. pH56 IP65 Waterproof pH…

  • 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,…

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    labForce® (powered by Thomas Scientific)

    The labForce® TS-F200 portable food pH meter is a perfect combination of the most advanced digital processing technology, software design, and electrochemical sensor technology, specially designed for the pH measurement of food (meat, cheese, dairy products, fruit, etc.) and other…

  • 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 …

  • Affordable optical RDO technology eliminates maintenance time and costs Durable waterproof and dustproof design with IP67 rating Eliminates costly, tiresome membranes and solutions Barometric pressure and salinity correction USB and RS-232 output for up to 500 data sets …

  • 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…

  • 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…

  • Thermo Scientific Orion

  • Professional pH/mV/ISE meter with DIN socket, backlit graphic display, for mobile application with data logger and USB interface. Single instrument including instruction manual, CD-ROM and batteries, cable

  • Jenway (Cole-Parmer)

    Thomas No. 1200R16 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…

  • 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…

  • A waterproof ORP and temperature meter, the housing has been completely sealed against humidity and designed to float. The temperature values can be displayed in °C or °F units. The meter is factory calibrated and measurements are highly accurate with a stability indicator right on the…

  • The Thermo Scientific™ Orion™ Lab Star DO113 Dissolved Oxygen Bench Meter is ideally suited for laboratories with users of varying levels of technical expertise and who require a simple-to-calibrate and use meter for routine dissolved oxygen testing. Scientists have trusted Thermo…

  • Customizable to your application - use with any pH electrode with a BNC connector Versatility of a handheld meter at a pocket price IP67- rated protects meter from water dust and shock while offereing chemical resistance Meter floats - accidental drops into water will not result on…

  • Optimized for laboratory measurements such as pH, ORP/mV, conductivity, resistivity, TDS, salinity, and temperature. •    Large monochrome LCD •    Integrated electrode holder (up to 2 electrodes) that can be attached to either side of the meter …

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