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Conductivity Sensor

The Hydrolab Conductivity sensor uses four graphite electrodes in an open cell design to provide extremely accurate and reliable data with virtually no maintenance.



Design based on four graphite electrodes in an open cell design

  • The probe measures the current between 2 electrodes held at a fixed potential; additional electrodes are used to compensate for any fouling of the electrode surfaces
  • Sensor measurements used to derive Salinity, Total Dissolved Solids, and Resistivity



Reduces measurement error due to environment – sediment falls to the bottom of the cell, and bubbles rise to the top. Measurements are reliable in any condition.

  • Easily maintained between deployments by cleaning with a Q-tip or cotton swab

Technical Specifications


0-100 mS/cm
± (0.5% of reading + 0.001 mS/cm)

DataSonde 5X

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