pH Meters

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 Scientific are our water quality test kits and water quality test strips.

pH Meters

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  • Probe Cond
  • pH 6+ Meters

    Achieve 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 a...

  • Waterproof pH Testers

    Features 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 water, you can even attach a...

  • Eutech™ Elite pH and CTS Pocket Testers

    pH/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...

  • NineFocus pH Meter

    Mettler Toledo

    NineFocus™ is a high-performance, multiparameter benchtop meter system, ideal for accurate measurements of pH, conductivity, ion concentration, redox potential, and dissolved oxygen. Its modular design effortlessly adjusts to growing needs for additional parameters or increased productivity....

  • Orion Pro Star MP218 pH/Ion/Conductivity/DO Bench Meter

    The Thermo Scientific™ Orion™ Pro Star MP218 pH/ion, conductivity, and dissolved oxygen bench meter is designed to provide accurate, reliable electrochemistry testing. Featuring an intuitive interface, enhanced data reporting and robust functionality, the Orion Pro Star MP218 meter...

  • Refillable, Combination pH Electrode

    Refillable, 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.: 20 to 40°C (68 to 104°F)...

  • Orion Pro Star PC215 pH/Ion/Conductivity Bench Meter

    The Thermo Scientific™ Orion™ Pro Star PC215 pH/ion and conductivity bench meter is designed to provide accurate, reliable electrochemistry testing. Featuring an intuitive interface, enhanced data reporting and robust functionality, the Orion Pro Star PC215 meter delivers advanced...

  • Star A214 pH/ISE Benchtop Meter

    Thermo Scientific Orion

    The 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...

  • 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...

  • ISE500 Benchtop pH/ISE Meters

    labForce® (powered by Thomas Scientific)

    The labForce® ISE500 Benchtop pH/ISE 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...

  • 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...

  • ProDSS Handheld Multiparameter Sampling Instrument

    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,...

  • PH200 Portable Meter Kit for Food & Dairy

    labForce® (powered by Thomas Scientific)

    The labForce® TS-F200 portable food 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 food (meat, cheese, dairy products, fruit, etc.) and other...

  • 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...

  • Traceable® Digital Salinity Meter

    labForce® (powered by Thomas Scientific)

    Traceable® pens for conductivity, dissolved solids, and salinity provides for conductivity, conductivity/total dissolved solids and salinity. Meters fulfill requirements for CAP, ASTM, NCCLS, CLSI, ACS, CLIA, AOAC, EPA, APHA, AWWA, WEF, USGS, USP, ISO and Federal/State regulations. Waterproof...

  • 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 (ATC), Auto...

  • 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 0-100°C...

  • PC300 Benchtop pH/Conductivity Meters

    labForce® (powered by Thomas Scientific)

    The labForce® PC300 Benchtop pH/Conductivity 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...

  • STARTER™ PH Bench Meter

    Affordable 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...

  • PH200 Portable Meter Kit for Beverage Making

    labForce® (powered by Thomas Scientific)

    The labForce® TS-B200 Portable pH Meter is designed for professional pH measurement of for brewing, such as beer, wine, kombucha, juice, etc. The 3-in-1 Glass pH/Temperature Electrode adopts a Long-Life reference system, and a patented pH/temp. dual sensor structure, making precise beverage pH...

  • 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...

  • PH200 Portable Meter Kit for Waste Water

    labForce® (powered by Thomas Scientific)

    The labForce® TS-WW200 Portable pH Meter is designed for professional pH measurement of wastewater, emulsions, and suspensions. The equipped 3-in-1 POM pH/Temp. Electrode uses Polymer electrolyte, Long-Life reference system, and a patented pH/temp. dual sensor structure, making precise...

  • Traceable® PH/ORP Meter

    labForce® (powered by Thomas Scientific)

    Compact instrument fits in the palm of your hand Accuracy: ±0.02 pH 25 point memory storage with time/date stamp Waterproof (IP67) Triple Display shows pH or ORP measurement, temperature and time\date Ideal for wastewater, water quality and environmental applications Traceable To NIST for...

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