MHK ISDB/Sensors/Conductivity Sensor 4120

From Open Energy Information

Conductivity Sensor 4120

Measurement Category: Oceanographic
Operating Environment: Underwater
Version(s): 4120AIW, 4120ASW, 4120BIW, 4120BSW
Communication Protocol: RS-232, Voltage, Current
Operating Mode: Free Streaming
Power Supply Type: VDC
Power Specification: 7-14 VDC (analog) 5-14 VDC (RS-232232)


The 4120 is a compact fully integrated sensor for measuring the electrical conductivity of seawater, the model includes an analog output adapter.

Sensor Measurements

  • Salinity (Water)

Notes, Considerations & Recommendations

Conductivity Sensor 4120 is available in two depth ratins: 2000m (4120AIW, 4120BIW; Intermediate Water) and 300 m (4120ASW, 4120BSW; Shallow Water).

Outputs data in both RS-232 and analog. Sensor available in A and B versions; version B has enhanced accuracy compared to version A.

In RS-232 mode the output is: Conductivity in mS/cm, Temperature in deg C, as well as calculated Salinity, Density and Speed of sound.

User Experience

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