Conductivity Electrodes (105 companies)
Conductivity electrodes are devices that measure the salinity and conductivity of water samples.
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Conductivity Meters (213 companies)
Conductivity meters, dissolved solids meters, and resistivity meters are analytical instruments that measure the conductivity, dissolved solids, and/or resistivity of a liquid sample.
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Dissolved CO2 Instruments (19 companies)
Dissolved CO₂ instruments are analytical devices that measure the amount of carbon dioxide (CO₂) dissolved in a liquid sample such as water. They typically include a submerged probe that is covered by a thin organic membrane.
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Dissolved Oxygen Meters (161 companies)
Dissolved oxygen meters are analytical instruments that are used to measure the amount of oxygen dissolved in a liquid sample.
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Dissolved Oxygen Sensors (98 companies)
Dissolved oxygen sensors are used to measure the amount of oxygen dissolved in a unit volume of water. In water quality applications, such as aquaculture (including fish farming) and wastewater treatment, the amount of dissolved oxygen (DO) must be kept high.
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Dissolved Solids Meters (213 companies)
Conductivity meters, dissolved solids meters, and resistivity meters are analytical instruments that measure the conductivity, dissolved solids, and/or resistivity of a liquid sample.
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Durometers (36 companies)
Durometers are instruments used for measuring the indentation hardness of rubber, elastomers, plastics and foam materials.
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Eddy Current Probes (34 companies)
Eddy current probes induce detectable eddy currents in ferrous and nonferrous material for flaw detection, weld inspection, and other nondestructive test applications.
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Hydrometers (48 companies)
Hydrometers are calibrated glass floats used to determine the specific gravity of a liquid. Learn more about Hydrometers

Ion Selective Electrodes (59 companies)
Ion selective electrodes measure the potential of a specific ion in solution. This potential is measured against a stable reference electrode of constant potential.
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Ion Specific Electrode Meters (80 companies)
Ion specific electrode meters are millivolt meters that interface with ion selective electrodes (ISEs). These meters take the potential generated by the electrode and convert it into units of concentration.
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pH and Oxidation Reduction Potential (ORP) Instruments (292 companies)
pH and oxidation reduction potential (ORP) instruments measure or monitor pH (relative concentration of hydrogen ions [H+] in a solution) as well as ORP.
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pH electrodes and ORP Electrodes (159 companies)
pH electrodes and oxygen reduction potential (ORP) electrodes measure the voltage across a circuit formed by the measuring metal half-cell and the reference half-cell.
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Photometers and Colorimeters, Water Quality (106 companies)
Water quality photometers and colorimeters are ion-specific computer-interfaced probes designed to determine the concentration of a solution from its color intensity.
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Pycnometers (14 companies)
Pycnometers are glass or metal containers with a determined volume. Typically, they are used to determine the density of liquids and their dispersions
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Resistivity Meters (213 companies)
Conductivity meters, dissolved solids meters, and resistivity meters are analytical instruments that measure the conductivity, dissolved solids, and/or resistivity of a liquid sample.
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Rheometers (49 companies)
Rheometers characterize a liquid according to its viscous properties and elastic responses.
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Turbidity Instruments (139 companies)
Turbidity instruments measure the average volume of light scattering over a defined angular range. Both particle size and concentration of suspended solids as well as dissolved solids can affect the reading.
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Viscometers (125 companies)
Viscometers define viscous properties of a fluid at ambient or defined temperatures.
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Water Quality Testing Instruments (215 companies)
Water quality testing instruments are used to test water for chemical and biological agents, and to measure variables such as clarity and rate of movement.
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