Field pH Meters
Field pH meters, pH testers, and pH electrodes are essential tools for accurately measuring the acidity or alkalinity of various samples in outdoor and laboratory settings. These devices are vital for Scientists, researchers, and professionals who require precise pH readings. 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.
Also available at Thomas Sci are our water quality test kits and water quality test strips.
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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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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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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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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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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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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Measure pH, mV (ORP), ISE and temperature accurately in the laboratory with the YSI pH 1320 or 1320P with built-in printer. The TruLab pH/ISE 1320 benchtop meter is the ideal laboratory instrument for reliable measurements with automatic documentation for GLP compliance. The 1320 benchtop is…
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Datalogging Meter pH Kit
Sper ScientificAutomatically 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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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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HI 9829 Multiparameter Meters
Hanna InstrumentspH/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…
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pH/Conductivity Tracer
LaMotteMeasures multiple parameters Stores up to 25 data sets Waterproof to IP67 The PockeTester pH/Conductivity tracer measures five parameters including conductivity, TDS, salinity, pH and temperature using one electrode. Units of measure are pH, µS, mS, ppm, ppt, mg/L, g/L,…
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pH/Cond 3320: Professional pH/conductivity meter with 2 inputs (DIN, 8 pin socket), backlit graphic display, for mobile application with data logger and USB interface. Single instrument including short instruction manual, CD-ROM and batteries, cable. pH/Cond 3320 SET 2: …
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Ph Buffer
Mettler ToledoThe Mettler Toledo technical buffer is mainly used for easy sensor insertion. It is used to make quick calibration. Mettler products are intended for sale/shipment within the US only. International customers should contact their local Mettler distributor to place orders for Mettler products. …
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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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The YSI pH/temperature field probe and cable is compatible for use with EcoSense pH100A, pH100 meter models. It is made of sturdy material which ensures durability and long lasting usage.
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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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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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pH Controller
Milwaukee InstrumentsWith Milwaukee's MC Controllers you can monitor and control pH and/or ORP levels. The Milwaukee Instruments "MC" Controllers have a user selectable set point and a visual "Power Activated" LED notification light. Power to the controller box is turned on when the reading…
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pH Cable, 6' Mettler
Bellco GlassSpecifications: Cable Has Ak9 Probe Connection And Bnc Controller Connection. Size: 6"
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Waterproof Thermo/pH-Meter
Alla FranceWATERPROOF THERMO/PH-METER (IP 57) With interchangeable electrodes (see Code No: 92200-006) Resolution : 0.01 pH / 0.1°C Accuracy : ± 0.02 pH / ±1°C Self calibration : pH 4.00-pH 7.00-pH 10.01 ATC (Automatic temperature compensation) Delivered in box with:…
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Thermo Scientific Expert CTS Conductivity/TDS/Salinity Pocket Tester with…
Thermo Scientific OrionThe Thermo Scientific™ Expert CTS Pocket Tester is designed for on-the-go measurements such as – Conductivity, TDS, Salinity, Temperature and other related electrochemistry measurements. The Expert CTS Pocket Tester is best used in applications such as environmental monitoring,…
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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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Waterproof pH/DO 450 Meter
OaktonAffordable 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 …
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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…
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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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CON 2700 Benchtop Meter
OaktonMeasure conductivity, total dissolved solids (TDS), salinity, resistivity, and temperature Brilliant backlit display with dynamic stability indication Up to 500 point memory with date-time stamp for GLP Output data to printer or PC Accepts either 2-cell or 4-cell electrodes Features…
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Dual display of pH or mV and Temperature ATC or manual Temperature compensation 3 point calibration ensures the best linearity and accuracy Large backlit dual LCD Stores 99 readings manually and 20M readings via 2G SD card User programmable sampling rate Built-in PC interface …
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Seven2Go pH/mV Meters S2
Mettler ToledoRobust in design, optimized for one-handed use, and comprising an intuitive menu structure, the Seven2Go portables offer quality pH measurement for laboratory, at-line, and outdoor environments. Simple Menu - Intuitive Operation Seven2Go's new intuitive menu guarantees…
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7-in-1 Meter with Lab-Quality Performance Measures Conductivity, TDS, Salinity, Resistivity, pH, mV and Temperature Waterproof housing (meets IP57) Automatic one button pH calibration (4, 7, and 10pH) Choice of 3 point pH calibration for better accuracy One point Conductivity calibration…
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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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Lab Star DO113 Dissolved Oxygen Bench Meter
Thermo ScientificThe 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…
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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 …