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.

CompanyThermo Fisher ScientificThermo Fisher ScientificThermo Fisher ScientificThermo Fisher ScientificThermo Fisher Scientific
ItemOrion Star™ A215 pH/Conductivity Benchtop Multiparameter MeterOrion™ Dual Star™ pH, ISE, mV, ORP and Temperature Multiparameter Benchtop MeterOrion™ VERSA STAR™ pH Benchtop MeterOrion™ VERSA STAR™ pH, ISE, Conductivity and Dissolved Oxygen Multiparameter Benchtop MeterOrion™ VERSA STAR™ pH/Conductivity Multiparameter Benchtop Meter
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Catalog NumberSTARA2150 / STARA21552115001 / 2115201 / 2115202 / 2115203 / 2115204VSTAR10 / VSTAR12VSTAR90 / VSTAR91 / VSTAR92 / VSTAR93VSTAR50 / VSTAR52
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DescriptionGet quick and accurate results with the Thermo Scientific™ Orion™ Star A215 pH/Conductivity Benchtop Multiparameter Meter, ideal for a wide range of applications in any lab.

This meter offers outstanding durability and dependability. Get the information you need quickly and easily from a large,
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Double your measurement capabilities with the Thermo Scientific™ Orion™ Dual Star™ pH and ISE Benchtop Meter and record accurate and reliable pH, ion concentration, mV, ORP and temperature measurements on two available meter channels, ideal for high throughput pH and ion analysis in the lab.

Perform
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All the information you need on one color-graphic LCD display. An advanced electrochemistry meter, the Thermo Scientific™ Orion™ VERSA STAR™ pH Benchtop Meter shows readings, connections, time, date, sample ID, user ID and calibration information.

Features:
  • Nonvolatile memory holds up to 2,000 data
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View readings in real time or transfer stored results with the Thermo Scientific™ Orion™ VERSA STAR™ pH/ISE/Conductivity/Dissolved Oxygen Multiparameter Benchtop Meter, featuring LCD display, a USA port and customizable channels. This advanced electrochemistry meter comes with pH/ISE, conductivity ... Read MoreYour meter as you need it, for now and later. Get readings in real time or transfer stored results with the Thermo Scientific™ Orion™ VERSA STAR™ pH/Conductivity Multiparameter Benchtop Meter.

Features:
  • Informative display shows readings, connections, time, date, sample ID, user ID and calibration
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Measurement Resolution0.1 pH, 0.01 pH, 0.001 pH, 0.1 mV, 0.1 °C, 0.001 µS minimum, 2 ohms-cm, 0.01 ppt, 4 significant digits TDS0.1, 0.01, 0.001pH, 0.1 mV, 0.0001 minimum, 1 to 3 significant digits (user selectable), 0.1°C, 0.1°F0.1 pH, 0.01 pH, 0.001 pH, 0.1 mV, 0.1 °C0.1 pH, 0.01 pH, 0.001 pH, 0.1 mV, 0.1 °C, 0.01, 0.1 mg/L; 0.1, 1 % saturation RDO/pDO, 0.001 µS minimum, 2 ohms-cm, 0.01 ppt, 4 significant digit TDS0.1 pH, 0.01 pH, 0.001 pH, 0.1 mV, 0.1 °C, 0.01, 0.1 mg/L; 0.1, 1 % saturation RDO, 0.001 µS minimum, 2 ohms-cm, 0.01 ppt
Measurement Mode(s)pH, mV, Conductivity, Temperature, Resistivity, Salinity, TDSpH, mV, relative mV (RmV), ORP with temperaturepH, mV, TemperaturepH, mV, RDO, Polarographic DO, Temperature, Conductivity, Resistivity, Salinity, TDSpH, mV, RDO, Temperature, Conductivity, Resistivity, Salinity, TDS
pH Range-2.000 to 20.000 pH-2.000 to 19.999 pH-2.000 to 20.000 pHInquire-2.000 to 20.000 pH
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