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.

pH Meters Products (214)

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

    labForce® (a Thomas Scientific Brand)
    Item #:
    1147H73-TS

    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: stable...

  • pH Controller

    Milwaukee Instruments
    Item #:
    1188H53

    With 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 is...

  • Waterproof pH Testers
    Item #:
    4133N27-TS

    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...

  • PC200 Portable pH/Conductivity Meters

    labForce® (a Thomas Scientific Brand)
    Item #:
    1147H77-TS

    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...

  • pH Controller and Pump

    Milwaukee Instruments
    Item #:
    1188J11-TS

    Control the pH of your tank/reservoir AUTOMATICALLY! The MC122 pH controller and dosing pump (MP810) provides fully automated pH control of aqueous solutions in hydroponic systems. It has been specifically designed to control the pH in mixing tanks for fertilization. The small and precise flow of...

  • pH Economical Pocket Testers

    Milwaukee Instruments
    Item #:
    1188H43-TS

    The pH600 is a pH tester can be used in many different applications and is considered an excellent starter unit for digital pH measurement. The calibration procedure is very simple and fast. This tester has 1 point manual calibration, ±0.1 pH accuracy and a range of 0.0 to 14.0 pH. The...

  • PH200 Portable Meter Kit for Test Tubes & Small Samples

    labForce® (a Thomas Scientific Brand)
    Item #:
    1147H85

    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 measurement...

  • Standard Portable pH Meter with 0.01 pH Resolution
    Item #:
    1188H46

    Standard portable meters with no frills! Milwaukee’s 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. MW101 performs pH measurements...

  • pH(ISE) Probe
    Item #:
    1234T30

    Easy user-replaceble sensor allows for quick sensor replacements if needed.  No tools necessary.  Measure pH quickly and easily with the 1001 sensor Use with the Professional Plus instrument Cables must be ordered separately One-year manufacturer’s sensor warranty

  • pH10A pH/Temperature Meters
    Item #:
    1191T70-TS

    The EcoSense ® pH10A pen-style instrument provides an ultimate feature set over similar competitive models. The pH10A features an easy-to-use graphic interface, simple one-hand operation, memory, and low cost of ownership over the life of the product. The easy, user-replaceable electrode ensures...

  • pH Waterproof Dual Level Testers
    Item #:
    1188H40-TS

    pH55 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...

  • Star A111 pH Benchtop Meter

    Thermo Scientific Orion
    Item #:
    1218X22-TS

    Thermo Scientific Orion Star A111 pH Benchtop 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...

  • Standard Portable pH / Conductivity / TDS Combination Meter with 0.1 pH Resolution
    Item #:
    1188H60

    3 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 is supplied...

  • Standard Portable pH / Conductivity / TDS Combination Meter
    Item #:
    1188H65

    3 meters in 1! This meter allows you to measure pH, EC (conductivity) and TDS with just one instrument and one single probe! The AG900, with a conductivity range that goes up to 6.00 mS/cm and the TDS up to 4000 ppm is ideal for testing in crop production. Soil and well water pH that is too acidic...

  • Standard Portable ORP Meter

    Milwaukee Instruments
    Item #:
    1188H48

    Standard 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 performs ORP...

  • Waterproof pH/CON 450 Meter
    Item #:
    1196L42-TS

    Select meter with combination pH/CON probe or separate pH and conductivity probes Intuitive, user-friendly icons—electrode status displays pH slope Grip-Clip electrode holder quickly and easily secures electrode to side of beaker or container USB or RS-232 output for up to 500 data sets...

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