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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The next step in the evolution of OHAUS’ original Starter Series, the all-new AQUASEARCHER™ AB33EC bench meter is designed with reliable measurement and user-interface in mind. The i-Steward ensures repeatable and consistent measurement accuracy for optimal peace of mind. The 6.5 inch…
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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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Simple to Use Benchtop Meter for Easily Measuring pH and ORP. Designed with a large LCD Display and six instructional menu buttons, AB23PH is a simple and straightforward pH meter. Auto buffer recognition and 3-point calibration capability ensures a reliable calibration result. Stand-alone holder…
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ORP Controller
Milwaukee InstrumentsWith each Milwaukee Smart controller, your aquarium will have the individual attention that it needs. Each unit comes with 12 VDC adapter, mounting kit, probe, probe holder and starter calibration solution for pH. (factory calibrated for ORP) Smart Professional ORP controller. …
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Oakton ION 100 Portable Ion Meter
Cole-ParmerThe perfect combination of the most advanced electronics technology, sensor technology, and software design Measured parameter and temperature shown on display at same time Stability, calibration, and low-battery indicators Display filter improves measurement, speed, and accuracy mV mode…
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Standard Portable ORP Meter
Milwaukee InstrumentsStandard 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. MW500…
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VERSA STAR PRO™ Benchtop pH Meters
Thermo Scientific OrionGet high accuracy, premium performance and ultimate flexibility with the Thermo Scientific™ Orion™ Versa Star PRO Benchtop Meter with pH Module. Meet your most challenging applications for pH, mV, ORP and temperature. Easily view measurements on the stunning color display and customize…
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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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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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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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ORP(ISE) Probe
YSIORP 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
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High Performance Bench Meter for Universal pH Applications Backed by OHAUS’ century-old commitment to providing precise measurement, Starter 5000 provides accurate pH and ORP measurement for high-level experiments and research. Enhanced features, advanced technology, and high…
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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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Seven2Go Accessories
Mettler ToledouGo™ Carrying Case Robust, light, and easy-to-clean. The uGo carrying case is IP67 and has a hermetically sealed interior that allows easy cleaning; regardless of the application. For Seven2Go and SevenGo Duo portables. Seven2Go Bench Stabilizing Unit Seven2Go accessory that…
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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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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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You don't need an answer, but the right one, and fast. Optimized stabilization algorithms in Hach meter platforms eliminate operator guesswork and reduce inaccurate measurements. Many electrodes work specifically to deliver accurate results and the quickest response, even in challenging…
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SensoLab Benchtop pH/ORP Meter
SensorexThe SensoLab Series Benchtop pH/ORP Meter is the perfect solution for a range of applications from instructional chemistry laboratories to quality control testing. Our waterproof pH and ORP meter helpfully prompts you through the calibration and measurement procedures, and includes the optional…
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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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Waterproof pH Meter
ExtechPH90 is a Waterproof ph Meter. Featuring a rugged, waterproof (IP57) housing with Flat Surface Electrode for measuring pH in liquids, semi-solids, and solids and also displays temperature on the large LCD. The electrode does not break or get junctions clogged like the traditional glass bulb probes.…
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Star A214 pH/ISE Benchtop Meter
Thermo Scientific OrionThe Thermo Scientific Orion Star A214 pH/ISE 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 pH/mV/RmV/ISE results and temperature along with electrode status, time, date, sample…
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3510 Bench pH Meter
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…
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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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PH100 Benchtop pH Meters
labForce® (powered by Thomas Scientific)The labForce® PH100 Benchtop pH Meter provides accurate measurement, quick response time, and consistent result thanks to the advanced digital filtering technology. It has three measuring modes for your specific measuring needs: stable measurement display mode, timing measuring mode, and…
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PH200 Portable Meter Kit for Meat
labForce® (powered by Thomas Scientific)The labForce® TS-MB200 portable meat 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 meat, meat products, fish, and beef. Its blade spear electrode uses a…
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STARTER™ PH Bench Meter
OhausAffordable Benchtop pH Meter with Electrode ST320 for Basic Laboratory Applications. User-friendly bench meter that clearly displays information - with five distinctly marked keys which allow users to operate with minimal training. Designed with a clear, user-friendly interface and the ability to…
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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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FermProbe? pH Probe,12x200mm Broadley-James
Bellco GlassThe fermprobe pH electrode with s8 metric cap features a standard s8 detachable cable connector on a metric pg 135 threaded polymer cap the design requires the rotation of the electrode during installation this style of pH fermprobe is the first choice for small autoclavable bench-top vessels all…
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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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The EcoSense® pH1000A benchtop instrument provides accurate measurements in an affordable format. The instrument features an easy-to-use interface and 1, 2, or 3 point pH calibration. In addition to pH, the pH1000A also measures ORP - Oxidation Reduction Potential (mV) and temperature. The…
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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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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,…