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    Benchtop Sodium Ion Meter

    Cost-effective benchtop sodium ion meter for sale online. It is a laboratory instrument designed for precise measurement of sodium ion concentrations in aqueous solutions. This ion meter employs ion-selective electrodes (ISEs) that selectively respond to sodium ions, generating a measurable electrical potential.
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    Delivery date: 6-12 days

    When the ISE generates a voltage proportional to the sodium ion concentration, the ion meter then converts this voltage into a concentration reading, providing accurate and reliable results. Benchtop sodium ion meters are widely used in various scientific and industrial applications, including environmental monitoring, food and beverage analysis, and medical research.


    Model ATO-ION-DWS-51
    Parameters pH/ISE/Temp.(mV/ORP/pX)
    pH Range -2.000 to 20.000 pH
    Resolution 0.1, 0.01, 0.001pH
    Accuracy ±0.002 pH
    Calibration Points Up to 8
    Standard Customization Yes
    Calibration Reminder Yes
    Standard Recognition USA, NIST, MERK, JIS, GB and DIN Buffers
    Slope Limit Yes
    mV/ORP Range -2000.00 to 2000.00 mV
    Resolution 0.1, 0.01 mV
    Accuracy ±0.1 mV or ±0.03% of Reading Whichever is Greater
    EH ORP Mode Yes
    ORP Calibration Points 1 Custom Point (Relative mV)
    pX Range -2.000 to 20.000 pX
    Resolution 0.1, 0.01, 0.001 pX
    Accuracy ±0.002 pX
    Calibration Points Up to 6
    ISE Range 1E-9 to 9.999E9
    Units mol/L, mmol/L, g/L, mg/L, μg/L
    Resolution Up to 4 Significant Digits
    Accuracy ±0.3%
    Calibration Points Up to 8
    Temperature Range -10 to 135 ºC, 14 to 275 ºF
    Unit ºC, ºF
    Resolution 0.1
    Relative Accuracy ±0.1
    Measurement Reading Mode Auto Read (Fast, Medium, Slow), Timed, Continuous
    Reading Prompts Reading, Stable, Locked
    Temp. Compensation ATC, MTC
    Data Management Data Storage 1000 Groups
    GLP Features Yes
    Inputs pH Electrode BNC(Q9)
    Temp. Probe 4-pin Aviation Connector
    Outputs USB USB 2.0 Flash Memory Device, PC, Scanner
    Bluetooth Printer
    Display Options Backlight Yes
    Auto Shutdown 300, 600, 1200, 1800, 3600 sec., Off
    IP Rating IP65
    Date and Time Yes
    General Power Rechargeable Lithium Battery, AC Adapter, 100-240V AC Input, DC5V Output
    Dimension 410*340*170mm
    Weight 6kg
    Standard Accessories Suitcase
    Electrode holder
    Stylus, Wristband


    • The portable pH/ion meter comes with 4.3 inches color high contrast LCD touchscreen.
    • Intelligent operation system provides features including user management, calibration management, electrode management, method management, data management, log management and etc.
    • This handheld pH/ion meter has multi-reading function that allows auto-read, timed-read and continuous-read.
    • Automatic/Manual temperature compensation ensures accurate results.
    • Auto-hold function senses and locks the measurement endpoint.
    • Data Storage 1000 sets for each parameter (GLP-compliant).
    • Data analysis function helps users review, compare and recalculate results.
    • This ion tester supports USB communication.
    • Auto-power off function effectively extends the battery service life.
    • Reset function automatically resumes all settings back to factory default options.
    • The portable meter with IP65 waterproof grade is suitable for field measurements and outdoor measurements.


    • 1-8 points calibration with Standard Recognition.
    • Selectable pH buffer groups, including USA, NIST, DIN, GB, MERK, JIS.
    • User-defined pH buffer or buffer group is supported.
    • Automatic electrode diagnosis with pH slope and offset display.


    • 1-6 points calibration.
    • Selectable measurement units, including μg/L, mg/L, g/L, mmol/L, pX, ppm, etc.
    • Multi-measurement modes are supported, including Direct Reading mode, Standard Addition mode, Sample Addition mode and GRAN mode.
    • Over 10 methods are built-in, including F-, Cl-, Br-, I-, NO3-, BF4-, NH4+, K+, Na+, Ca2+, Cu2+, Pb2+, Ag+ and etc., user-defined method is supported.


    portable pH/ion meter application

    Tips: Can benchtop sodium ion meter be only used for sodium ISE?

    A benchtop sodium ion meter is primarily designed for measuring sodium ion concentrations using an ion-selective electrode (ISE). While it is optimized for accurate and precise sodium ion measurements, its functionality may extend to other ions depending on the specific meter model and available ion-selective electrodes. Some benchtop meters support interchangeable ion-selective electrodes, allowing users to measure concentrations of different ions by swapping electrodes. However, the accuracy and reliability of measurements for ions other than sodium may vary, and it is crucial to use the appropriate calibration standards and electrodes. In summary, while a benchtop sodium ion meter is specialized for sodium measurements, its versatility can be enhanced with compatible ion-selective electrodes, broadening its application to other ions within its technical specifications. Users should consult the instrument's documentation for guidance on ion compatibility and electrode interchangeability.

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