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

Products (205)

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  • Dissolved Oxygen Meter Kit

    Reliable DO readings at a reasonable price. Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries. The back-lit display simultaneously displays dissolved oxygen (in % or mg/L) and temperature readings...

  • 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...

  • Waterproof pH 150 Meter

    Best 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, zeroing mV, and pH...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • PH200 Portable Meter Kit for Test Tubes & Small Samples

    labForce® (powered by Thomas Scientific)

    The labForce® TS-SS200 Portable pH Meter is designed for professional pH measurement in test tubes and small liquid samples (>0.2mL). The 3-in-1 POM pH/Temperature Electrode adopts a Long-Life reference system, and a unique cylindrical semi-micro sensor, making precise small sample pH...

  • PH200 Portable Meter Kit for Soil

    labForce® (powered by Thomas Scientific)

    The labForce® TS-S200 Portable pH Meter is designed for professional direct soil pH measurements. The 3-in-1 POM pH/Temp. Electrode uses Polymer electrolyte, Long-Life reference system, and a unique blue spear sensor tip, making precise direct soil pH measurement easier than ever. This soil pH...

  • M1000 Benchtop pH/mV/Conductivity/ISE/DO Meters

    labForce® (powered by Thomas Scientific)

    The labForce® M1000 Benchtop pH/mV/ISE/Conductivity/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:...

  • PH200 Portable Meter Kit for Dairy Products

    labForce® (powered by Thomas Scientific)

    The labForce® TS-D200 Portable pH Meter is designed for professional pH measurement of dairy products (milk, buttermilk cream, yogurt, etc.) and other liquid food such as jam, BBQ sauce, syrup, etc. The 3-in-1 Glass pH/Temperature Electrode uses Proselyte electrolyte, Silver Ion Trap reference...

  • Ph Buffer

    Mettler Toledo

    The 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. Mettler...

  • 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....

  • Electrodes and Accessories for Inolab Benchtop pH Meters

    Electrodes 4258A53 electrode allows ORP measurements to be performed with all WTW pH/mV meters. Requires 4258A57 cable for use with Inolab Meters.

  • HI 9829 Multiparameter Meters

    pH/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 from up...

  • AQUASEARCHER™  Bench Meter

    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,...

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