Field pH Meters
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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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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Save money by replacing sensor, not tester! Conductivity, pH, salinity, and TDS all in one meter 3-point calibration with automatic recognition of standards Large easy-to-read LCD features two-color backlight Rugged IP67-rated housing is waterproof, dustproof, and floats in water…
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Repl Electr Sensor ORP Testr
OaktonYou’ll never loose this tester by dropping it into a tank or pond; the waterproof ORPTestr floats! IP67-rated housing protects the instrument from rugged field and plant environments. Replaceable sensor lets you reuse meter body many times without losing waterproof and dustproof…
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Waterproof pH and temperature field probe and cable assembly. Used with pH100, pH100A
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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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Carrying Cases for Milwaukee Instruments Meters
Milwaukee InstrumentsThomas No. 1188J13: Hard Carrying Case (Small "Lunch Box" Size) for use with MW Portable Meters, Protective Case for the following "MW" Series Meters -- MW100 - MW101 - MW102 - MW301 - MW302 - MW401 - MW402 - MW500 Thomas No. 1188J14: Hard Carrying Case (Thin Brief Case Size) with Interior…
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Salinity Pen 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, s
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FiveEasy™ pH/mV Meters
Mettler ToledoThe 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…
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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…
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ORP Pen 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, s
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edge® Dedicated pH/ORP Meter
Hanna InstrumentsHanna 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…
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Star A121 pH Portable Meter
Thermo Scientific OrionThermo Scientific Orion Star A121 pH Portable Meters combine simplicity with accuracy. A large LCD displays pH or mV readings along with temperature. Icons provide quick updates on battery life, electrode status and calibration information. Simple button layout and onscreen messages help with…
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Orion Automatic Stirrer
Thermo Scientific OrionStir 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…
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Waterproof pH 150 Meter
OaktonBest 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,…
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Orion Versa Star pH/ISE Module
Thermo Scientific OrionAdd pH measurement to your meter with the Thermo Scientific™ Orion™ Versa Star™ pH/ISE Multiparameter Module. Select from five measurement modules to customize your meter’s four channels as you need it. The module allows you to design the exact meter you need now, with the…
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Extremely versatile—the meter automatically recognizes which sensors you plug in so you can easily switch parameters whenever you want Select a meter with the number of channels you need (1, 2, or 3) and the sensors for the parameters you are measuring (pH, conductivity, or DO) Eliminate…
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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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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 (model 260) and phono jack printer…
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pH / ORP / Temperature Laboratory Bench Meter
Milwaukee InstrumentsThis high performance economy microprocessor-based pH/ORP/Temp Bench meter is an ideal tool in schools, laboratories and production plants. It is provided with a series of new diagnostic features which add an entirely new dimension to the measurement of pH, by allowing the user to dramatically…
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HI 9829 Series Probes & Accessories
Hanna InstrumentsThomas 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…
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Lab Star EC112 Conductivity/Salinity/TDS Bench Meter
Thermo ScientificThe Thermo Scientific™ Orion™ Lab Star EC112 Conductivity 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 conductivity, salinity and TDS testing. Scientists have trusted…
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SD 60 Redox/ORP Meter
LovibondThe SD 60 Redox/ORP Tester is ideal for field testing in environmental or industrial settings as well as for pool and spa testing! The robust housing is completely waterproof (IP67 rated!) and the intuitive scroll-bar functionality combined with a backlit display enable the easy measurement…
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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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Orion™ Basic Electrodes
Thermo Scientific OrionPerform basic pH measurements quickly and reliably with Thermo Scientific™ Orion™ Basic Electrodes, for use with Orion™ Russell meters.
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The 556 MPS handheld instrument has been discontinued. YSI will continue to support existing 556’s through 2020. The Professional Plus (Pro Plus) or ProDSS handheld instruments are suitable replacements. Versatile, multi-parameter hand-held instrument Measures…
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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…
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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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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 (model 260) and phono jack printer…
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Orion™ Star A and Versa Star™ Accessories
Thermo Scientific OrionGet 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…
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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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Includes EC500 pH/Conductivity meter with combination high accuracy multi-ranging Conductivity sensor for Conductivity, TDS, Salinity, pH and Temperature measurements Includes DO600 Dissolved Oxygen meter with electrode, replacement membrane cap, electrolyte, and polishing paper Complete with…