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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pH 6+ Meters
OaktonAchieve 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…
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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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Star A212 Conductivity Benchtop Meter
Thermo Scientific OrionThe 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,…
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SevenGo Duo™ pH/Conductivity Meter
Mettler ToledoSevenGo Duo™ combines user-friendliness, quality and reliable measurements. The meter is designed so a single keystroke triggers a calibration/ measurement and allows accessing stored results or system settings. The kit versions are also well suited for outdoor use or use in the production…
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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…
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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…
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Refillable, Combination pH Electrode
Hanna InstrumentsRefillable, combination pH electrode for general laboratory purposes as well as beer testing. Reference: single, Ag/AgCl Junction/Flow Rate: ceramic, single / 15-20 µL/h Electrolyte: KCl 3.5M + AgCl Max Pressure: 0.1 bar Range: pH: 0 to 13 Recommended Operating Temp.:…
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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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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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SevenGo Duo™ pH Meter - pH/Ion/Dissolved Oxygen
Mettler ToledoThe 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…
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Bench-Top pH/mV Meter
Sper ScientificRugged 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 …
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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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ORPTestr BNC
OaktonLarge, two-line display Waterproof, dustproof housing floats! Double junction electrode is ideal for dirty water, heavy metals, sulfides and organics Replaceable sensor lets you reuse same meter body, saving you money Push-button ±150 mV offset adjustment …
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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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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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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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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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Convenient Portable pH Meter for Wherever Your Work Takes You After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in the form of a portable pH meter. This portable meter offers convenience, reliability and…
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pH/CON 700 Benchtop Meter
OaktonEasily toggle between pH, mV, conductivity, TDS, and temperature measurements at the touch of a button Space-saving design takes up less room on the bench than other meters Large display lets you see your measurements from across the lab Conductivity and TDS autoranging chooses the best…
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Pocket Pro pH Tester
HachTake The Guesswork Out of Your Measurements Hach Pocket Pro and Pro+ are engineered to deliver accurate results. Backed up with built in performance diagnostics, you never have to guess when to clean or calibrate the sensor. You also get replaceable batteries for convenient field…
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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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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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pH Waterproof Dual Level Testers
Milwaukee InstrumentspH55 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…
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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 …
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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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Waterproof pH Testers
OaktonFeatures 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…
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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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Eutech™ Elite pH and CTS Pocket Testers
Thermo Scientific OrionpH/Conductivity/TDS/Salinity/Temperature The Eutech™ Elite pH and CTS pocket tester simultaneously displays pH, conductivity/TDS/salinity with temperature. This offers a suitable method to measuring multiple parameters with just one meter. This tester can be used with the following…
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pH Monitors
Milwaukee InstrumentsThe MC Monitors are designed to continuously monitor pH, EC or TDS values directly in your reservoir. Each unit features a user selectable set-point. An LED visual alarm is activated and flashes when the pH, EC or TDS level rises either Above or Below (user selected) that set-point. All these…
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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…
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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,…