Benchtop pH Meter

A benchtop pH meter is an electronic instrument used to measure the acidity and alkalinity of liquid or semi-solid samples across many industries with applications in waste water, drinking water, food and beverage, chemical and pharmaceutical testing.

Typical benchtop pH meters consist of a measuring electrode, reference electrode, and a meter. The measuring electrode is hydrogen ion [H+] sensitive and measures pH as the sample surrounds the glass bulb at the end. A small voltage output varies with the concentration of the H+ ions in the sample and that is measured and displayed as pH units by the meter. A variety of benchtop pH meters are available with different combinations of measurement modes including pH, mV, ion, and conductivity.

Temperature compensation is an important factor as the pH electrode is temperature dependent. The millivolt (mV) output from the pH electrode will change in correlation to the change in temperature of the sample. This is as a result of a direct change in the H+ ion activity of the sample and ionization of compounds. Depending on the type of pH meter, temperature compensation can be available in a manual or automatic mode.

CompanyMettler-Toledo GmbHMettler-Toledo GmbHMettler-Toledo GmbHMettler-Toledo GmbH
ItemSevenCompact S220 Bench pH/Ion MeterFiveEasy Plus FP-20 Benchtop pH/mV MeterSevenCompact Duo S213 Benchtop pH/mV/Cond MeterSevenExcellence S400 Benchtop pH/mV Meter
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Catalog NumberS220302666273033995830046240
Price
Description

Versatile and robust routine pH/Ion benchtop meter with a compact design to save space while providing precise, intuitive measurements.

The kit version comes with the S220 meter, InLab Expert Pro-ISM electrode, guide to pH measurement, calibration sachets, electrode holder and a protective cover.

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... Read More		Compact in design, and featuring various data export functions, the FiveEasy and FiveEasy Plus benchtop instruments, provide reliable highquality pH/mV or conductivity measurements with a simple click at a reasonable price.

The kit version comes with the S213 dual channel meter, one InLab 731-ISM electrode, one InLab Expert Pro-ISM electrode, guides to pH and conductivity measurement, calibration sachets, electrode holder and a protective cover.

-Prominent color display featuring a 4.3 inch high-resolution screen with

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The kit version comes with the S400 meter, InLab Expert PRO-ISM electrode, guide to pH-measurement, and calibration sachets. SevenExcellence combines high measurement performance with an intuitive touchscreen and complete security package for accurate results and solid compliance. This single

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Measurement Resolution0.001 to 0.1 (pH); 0.1 or 1 (mV); 0.1C (Temperature)0.01 to 0.1 (pH), 1 (mV)0.001 to 0.1 (pH); 0.1 or 1 (mV); 0.001 to 1 (Cond); 0.1C (Temperature)0.001 to 0.1 (pH); 0.1 or 1 (mV); 0.1C (Temperature)
Measurement Mode(s)pH, mV/ORP and IonpH, mV/ORPpH, mV/ORP and Conductivity, dual channelpH, mV/ORP
pH Range-2.000 to 20.000 pH-2.00 to 16.00 pH-2.000 to 20.000 pH-2.000 to 20.000 pH
Temperature CompensationInquireInquirelinear, non-linear, off, pure waterInquire
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