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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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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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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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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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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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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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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*** Accessories Available - Meter has been discontinued *** Basic, inexpensive meter produces reliable results Waterproof (IP67) Measures/compensates temperature in °C or °F European CE Mark Anti-glare coating Powered by long-lasting batteries (est 500…
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DO700 Benchtop pH/DO Meters
labForce® (powered by Thomas Scientific)The labForce® DO700 Benchtop pH/DO Meter features automatic calibration, automatic temperature compensation, data storage, timing measurement, clock display, RS-232 output, function setting and self-diagnose. It has three measuring modes for your specific measuring needs: stable measurement…
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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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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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SD 50 pH Meter
LovibondThe SD 50 pH 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 and…
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Waterproof ExStik® pH Meter
ExtechBuilt-in Smart chip offers advanced functions and features to a stick style pH meter not found anywhere else RENEW feature that tells you when it's time to replace your pH electrode CAL feature that tells you when it's time to recalibrate your meter Flat Surface pH electrode that is…
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pH Pens
Sper ScientificHighly stable and accurate readings with large LCD display Designed for simple one-hand operation Automatically calibrates to pH 4, 7, 10 buffers and can be adjusted to recognize non-standard buffers as well Features hold function and auto power
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The YSI ProDSS (digital sampling system) is a portable water quality multiparameter instrument for the measurement of several critical parameters - dissolved oxygen (optical), turbidity, pH, ORP, conductivity, specific conductance, salinity, TDS, resistivity, TSS, ammonium, ammonia, chloride,…
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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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780 pH Meter
MetrohmIn addition to pH, voltage and temperature measurement, the 780 pH Meter also offers an automatic stirrer control, a multi-point calibration with up to nine buffers, a method memory and various monitoring functions. The automatic pH electrode test in conformance with GLP permits objective…
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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 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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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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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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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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Professional pH/mV/ISE meter with DIN socket, backlit graphic display, for mobile application with data logger and USB interface. Single instrument including instruction manual, CD-ROM and batteries, cable
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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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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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VERSA STAR pH/ISE Benchtop Multiparameter Meter
Thermo Scientific OrionThis versatile meter has a large, color graphic LCD display. The informative display shows readings, connections, time, date, sample ID, user ID and calibration information. Select from five modules to customize the four channels as you need it - it's versatile for you…
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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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VERSA STAR™ pH/LogR™ Benchtop Meters
Thermo Scientific OrionThis versatile meter has a large, color graphic LCD display. The informative display shows readings, connections, time, date, sample ID, user ID and calibration information. Select from five modules to customize the four channels as you need it – it's versatile for you to…
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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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Waterproof pH and temperature field probe and cable assembly. Used with pH100, pH100A