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    Product description

    The conductivity sensor is an interchangeable sensor that works with HOBO MX800 Series Water Loggers to measure conductivity and temperature. With this sensor attached to a HOBO MX800 Series Water Logger, the logger can also calculate specific conductance, salinity, and total dissolved solids (TDS).

    The conductivity sensor can be attached directly to the fully submersible MX801 model, or attached via cable to the direct read MX802 model, which doesn’t require having to pull the sensor out of the water to download data.

    • 4-electrode conductivity sensor provides wide measurement range for monitoring freshwater or saltwater
    • Conductivity sensor is centrally located to minimize effects from stilling wells or protective guards
    • 1” diameter for use in narrow wells (with cable to MX802 above the well)
    • Temperature sensor placement near the sensor tip for fast fast response time
    • Specially treated stainless steel holds up in saltwater

    Please note:

    Requires a HOBO MX801 or MX802 Data Logger, the HOBOconnect app, and a compatible mobile device or Windows computer. System requirements for the app can be found at the bottom of the HOBOconnect software page.

    Specifications HOBO Conductivity Sensor for MX800 series
    Conductivity Measurements
    Measurement Range
    Electrical conductivity and specific conductance: 0 to 100,000 µS/cm
    Salinity using PSS-78: 2 to 42 PSU
    Total Dissolved Solids (TDS): 0 to 100,000 mg/L
    Calibrated Range
    Electrical conductivity: 50 to 80,000 µS/cm
    5° to 35°C (41° to 95°F)
    Conductivity: +/-2% or 15 µS/cm whichever is greater
    Salinity: +/-2% of reading or 0.1 PSU, whichever is greater
    0.1 µS/cm from 0 to 1,000 µS/cm
    1 µS/cm from 1,000 to 10,000 µS/cm
    10 µS/cm from 10,000 to 100,000 µS/cm
    Salinity: 0.01 PSU
    TDS: 0.1 mg/L
    Response Time
    1 second to 90% at a stable temperature
    Temperature Measurements
    -20° to 50°C (-40° to 122°F), non-freezing water
    ±0.15°C (±0.27°F) from 0° to 50°C (32° to 122°F)
    0.01°C at 25°C (0.018°F at 77°F)
    Response Time
    3 minutes to 90% in water (typical)
    <0.1°C (0.18°F) per year
    2.5 cm (1 inch) diameter, 15 cm (6 inches) length
    Approximately xx g (xx oz) in air; approximately xx g (xx oz) in saltwater
    Wetted Materials
    Passivated 316 Stainless steel housing rated for use in saltwater, Viton and Buna-N O-rings, PET sensor connector
    Conductivity sensor: PET, platinum plating on electrodes
    Note: Sensor should be mounted so that it is not in contact with other metals
    Environmental Rating
    IP68; Waterproof to 100m


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    HOBO Conductivity Sensor for MX800 series
    € 916,03
    HOBO Conductivity Sensor for MX800 series
    0 In stock: 3-6 Weeks
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