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    Benchtop pH/Ion/ORP Meter

    Buy a favorable price benchtop pH/Ion/ORP meter online for ISE electrode. This ion/pH meter is a versatile laboratory instrument designed for measuring and monitoring the acidity (pH), ion concentration, and oxidation-reduction potential (ORP) of aqueous solutions, which is widely used in chemistry, biology, environmental science, and quality control.
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    Benchtop pH/Ion/ORP meter features a user-friendly interface, a digital display, and a variety of measurement modes. It employs specialized electrodes for pH and ion measurement, allowing researchers and technicians to analyze and control the chemical composition of liquids with precision. The pH function assesses the hydrogen ion concentration, while the ion measurement capability enables the quantification of specific ions in a solution. The ORP function provides insights into the solution's oxidative or reductive state.


    Model ATO-PHION-I600L
    Parameters pH/ISE/Temp.(mV/ORP/pX)
    pH Range -2.000 to 20.000pH
    Resolution 0.1, 0.01, 0.001pH
    Accuracy ±0.002 pH
    Calibration Points Up to 6
    Standard Customization Yes
    Calibration Reminder Yes
    Standard Recognition NIST, GB and DIN Buffers
    Slope Limit Yes
    mV/ORP Range -2000.00 to 2000.00mV
    Resolution 0.1, 0.01mV
    Accuracy ±0.03%F.S
    EH ORP Mode Yes
    ORP Calibration Points 1 Custom Point (Relative mV)
    pX Range -2.000 to 20.000pX
    Resolution 0.1, 0.01, 0.001pX
    Accuracy ±0.002 pX
    Calibration Points Up to 6
    ISE Range 1.000E to 9.999E+9
    Units mol/L, mmol/L, g/L, mg/L, μg/L
    Resolution Up to 4 Significant Digits
    Accuracy ±0.3%
    Calibration Points Up to 6
    Temperature Range -5 to 130ºC
    Unit ºC
    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
    Log Management Yes
    Inputs pH Electrode BNC(Q9)
    Temp. Probe 6-pin Mini-DIN
    Outputs USB, RS232 USB 2.0 Flash Memory Device, PC
    Display Options Backlight Yes
    Auto Shutdown 1~60 min, Off
    IP Rating IP54
    Date and Time Yes
    General Power AC Adapter, 100-240V AC Input, DC24V Output
    Dimension 280*280*130mm
    Weight 2.5kg


    • The benchtop pH/Ion/ORP meter comes with a 7.0-inch color high contrast LCD touchscreen.
    • Intelligent operation system provides functions including user management, calibration management, method management, data management, etc.
    • Multi-reading function allows auto-read, timed-read and continuous-read.
    • Automatic/Manual temperature compensation ensures accurate results.
    • Data Storage 1000 sets for each parameter (GLP-compliant).
    • Data analysis function helps users review, compare and recalculate results.
    • Support for USB or RS232 communication.
    • Reset function automatically resumes all settings back to factory default options.
    • IP54 waterproof.


    • 1-6 points calibration with Standard Recognition.
    • Selectable pH buffer groups, including NIST, DIN, GB.
    • Support for pH standard group customization.
    • 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: How does a benchtop pH/ion/ORP meter?

    A benchtop pH/ion/ORP meter is a laboratory instrument used to measure the acidity (pH), ion concentration, and oxidation-reduction potential (ORP) of a solution. It typically consists of a meter unit and a specialized electrode. The pH electrode measures the hydrogen ion concentration, while ion-selective electrodes detect specific ions based on their selectivity membranes. The ORP electrode measures the electron activity in a solution, providing information about its oxidative or reductive nature. To use the meter, the electrodes are immersed in the sample, and the meter displays readings based on the electrical signals generated. Calibration with standard solutions ensures accuracy. This versatile tool is crucial in various scientific fields, including chemistry, biology, and environmental science, where precise control of solution properties is essential for accurate experimentation and analysis.

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