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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Star™ A211 pH Benchtop Meters
Thermo Scientific OrionThermo 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…
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Lab Star PH111 pH/mV Bench Meter
Thermo ScientificLSTAR1110 The Thermo Scientific™ Orion™ Lab Star PH111 pH/mV 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 pH testing. Scientists have trusted Thermo Scientific…
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Star™ A221 pH Portable Meters
Thermo Scientific OrionGet 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…
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pH 700 Benchtop Meter
OaktonCompact 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…
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PH200 Portable pH Meters
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…
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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…
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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…
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Standard Portable pH / Conductivity / TDS Combination Meter with 0.1 pH…
Milwaukee Instruments3 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…
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Direct Soil pH Measurement Kit
Hanna InstrumentsDedicated to soil pH measurement Specialized soil pH electrode Multi-level LCD display User friendly operation using only 2 buttons On-screen tutorial messages Automatic Temperature Compensation Automatic one or two point calibration BEPS (Battery Error Prevention System)…
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Multi 3320: The Environmental Expert The Multi 3320 for measurement of pH, ORP, ISE, conductivity and dissolved oxygen (electro chemical) is a perfect meter for environmental applications in ground and surface water, aqua culture, waste water treatment plants and much more. An integrated ISE…
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SevenExcellence™ Professional Multi-Channel Meters
Mettler ToledoProfessional 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.…
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Star A329 pH/ISE/Conductivity/Dissolved Oxygen Portable Multiparameter Meter
Thermo Scientific OrionThe Thermo Scientific Orion Star A329 pH/ISE/Conductivity/RDO/Dissolved Oxygen Portable Meter is the top choice for advanced multiparameter measurements on location. Get the information you need quickly and easily from the large, backlit graphic LCD display. Informative display can show each…
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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…
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Pen pH Meters
OhausAfter 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, salinity, and total dissolved solids (TDS).…
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ION 700 Benchtop Meters
OaktonLarge display allows you to see measurement values at a glance Custom 3-1/4" x 2-7/16" LCD display Small size conserves valuable benchspace Store and recall up to 100 data sets Ion 700 meter measures pH, mV, relative mV, and temperature while adding ion measurement…
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Measure pH quickly and easily in the lab with the 110 sensor. Lab-grade, pH/temperature sensor with 1-meter cable For use with the pH100 instrument Six-month sensor manufacturer’s warranty
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PH200 Portable Meter Kit for Purified Water
labForce® (powered by Thomas Scientific)The labForce® TS-W200 Portable pH Meter is designed for professional pH measurement of purified water such as drinking/RO/distilled/deionized water and other low ion-concentration solutions. The 3-in-1 Glass pH/temp. Electrode uses a moveable sleeve junction, Long-Life reference system, and a…
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PC200 Portable pH/Conductivity Meters
labForce® (powered by Thomas Scientific)The labForce® TS-PC200 Portable pH/Conductivity Meter combines advanced digital processing technology and software design, specially designed for all types of professional pH and conductivity measurements. The meter has a ±0.01 pH accuracy in a range of -2.00-19.99 pH., with…
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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,…
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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…
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Simple-to-Use Benchtop Meter Designed to Easily Measure Conductivity, TDS and Salinity. With six instructional menu buttons and auto temperature compensation, it is an easy and straightforward meter for measurement. A large 5-inch backlit LCD display with complete measurement information simplifies…
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Waterproof ISE Salinity Meter
Hanna InstrumentsFor 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…
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pH 5+ Meter
OaktonHigh ±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 …
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Oakton PC 100 Portable pH/Conductivity Meter
Cole-ParmerMeasure 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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Waterproof pH/ORP Testers
OaktonCustomizable 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…
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Waterproof pH 450 Meter
OaktonBacklit, 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 …
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PCSTestr™ 35, PCTestr™ 35 and PTTestr™ 35 Mutiple measurements in one instrument Displays measured value along with temperature — simply press a key to toggle between pH, conductivity, TDS, and salinity where applicable Waterproof, dustproof housings float …
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Orion™ Portable Meter & Accessories
Thermo Scientific OrionProtect your portable meter using Thermo Scientific™ Orion™ Star A series portable meter protective armor for use with Thermo Scientific™ Orion™ Star A series portable meters (Star A320, Star A220 and Star A120 series). Portable meter armor adds protection around the meter screen and includes a…
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The 6051010 is a 2-port (i.e. dual) pH/ORP/ISE cable that ONLY works with the YSI Professional Plus instrument. The cable has 2 ports for any combination of pH, ORP, or ISE sensors. Cables can be ordered in lengths of 1-, 4-, 10-, 20-, and 30-meters. Cables over 1-meter come with the 603062…
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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…
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For pHtestr 30 purchased before Oct. 2019 Replace electrodes when they break, no longer hold calibration, cannot be rehydrated, or are not compatible with your sample. For your convenience, cables, power adapters, and other accessories are available for your Oakton meters and pocket testers. …
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pH / Orp / Temperature Waterproof Tester
Hanna Instruments1228Q43 is a waterproof pH, ORP and temperature meter. The housing has been completely sealed against humidity and designed to float. All pH readings are automatically temperature compensated and temperature values can be displayed in °C or °F. The meter can be calibrated at one or two…