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 (228)

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  • Thumbnail Image for 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...

  • Thumbnail Image for pH / ORP / Conductivity / TDS / NaCl / Temperature Laboratory Bench Meter

    Milwaukee Instruments
    Item #:
    1188H67

    The automatic temperature compensation can also be disabled for measuring the actual conductivity value. The stability indicator on the LCD ensures accuracy. Conductivity readings are performed with the 4-ring probe supplied with the meter. The GLP feature allows users to store and recall data on...

  • Thumbnail Image for Professional Portable pH / Temperature Meter

    Milwaukee Instruments
    Item #:
    1188H56

    Extended Range pH and Temperature Meter in a compact casing The included electrode has a built-in temperature sensor and amplifier to prevent electrical interference. The large display shows readings in an extended range from -2.00 to 16.00 pH and simultaneously shows temperature from -5.0 to...

  • Thumbnail Image for pH Waterproof Dual Level Testers

    Milwaukee Instruments
    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...

  • Thumbnail Image for 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...

  • Thumbnail Image for pH/ORP Waterproof Combination Tester

    Milwaukee Instruments
    Item #:
    1188H42-TS

    Combination waterproof testers with advanced functions also include the new model pH58 for simultaneous pH and ORP measurements and temperature, which is continuously displayed on the dual level LCD. It shows readings in an extended range from -2.00 to 16.00 pH or ±1000 mV and simultaneously...

  • Thumbnail Image for Professional Portable pH / Conductivity / TDS / Temperature Meter

    Milwaukee Instruments
    Item #:
    1188H62

    Measures 4 parameters with 1 single probe. Mi805 offers you a combination of pH, Conductivity, total dissolved solids and temperature measurements. You can select from a range of calibration buffers and also the temperature scale (°C or °F) can be selected. The multi-parameter probe...

  • Thumbnail Image for Professional Portable pH / Conductivity / TDS / Temperature Meter

    Milwaukee Instruments
    Item #:
    1188H63

    Measures 4 parameters with 1 single probe. Mi806 offers you a combination of pH, Conductivity, total dissolved solids and temperature measurements. You can select from a range of calibration buffers and also the temperature scale (°C or °F) can be selected. The multi-parameter probe...

  • Thumbnail Image for ORP Waterproof Dual Level Tester

    Milwaukee Instruments
    Item #:
    1188H39-TS

    IP65 Waterproof pH tester with Large dual-level LCD that displays ORP and temperature (°C or °F). The large display shows readings from -1000 to +1000 (with a resolution of 1 mV) and simultaneously shows temperature from -5.0 to 105.0°C or 23.0 to 221.0°F. ORP57 has a stability...

  • Thumbnail Image for Standard Portable pH / Conductivity / TDS Combination Meter

    Milwaukee Instruments
    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...

  • Thumbnail Image for 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...

  • Placeholder Image for Bench Top Meter Electrodes

    Hach
    Item #:
    1217K38-TS

    You don't need an answer, but the right one, and fast. Optimized stabilization algorithms in Hach meter platforms eliminate operator guesswork and reduce inaccurate measurements. Many electrodes work specifically to deliver accurate results and the quickest response, even in challenging...

  • Thumbnail Image for Standard pH Mini-Bench Meter

    Milwaukee Instruments
    Item #:
    1188H49

    Standard pH mini-bench meter for quick and reliable measurements. Double junction electrode with 1 meter cable Manual calibration 2 points Faster Processor with The New Chipset and Motherboard 100% Larger & Easier To Read LED Display Smaller, Ergonomic & Lighter Case Design Includes 9vDC...

  • Thumbnail Image for HQ40d Portable pH, Conductivity, Optical Dissolved Oxygen (DO), ORP, and ISE Multi-Parameter Meter

    Hach
    Item #:
    1189N42

    Designed for your water applications, the Hach HQ40d portable meter is an advanced meter that takes the guesswork out of measurements. HQd™ meters connect with smart probes that automatically recognize the testing parameter, calibration history, and method settings to minimize errors and setup...

  • Thumbnail Image for pH 700 Benchtop Meter

    Oakton
    Item #:
    1223L12-TS

    Compact 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 large,...

  • Thumbnail Image for 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...

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