Salinity Sensor

SPOTTER PLATFORM

Salinity Sensor

Add a compact, inductive conductivity sensor to your Spotter Platform to monitor salinity and water density in real time. Measure conductivity with exceptional stability, minimal drift, and solar-rechargeable power to track ocean mixing and stratification.

Explore Configuration

Sensor Specifications

Download the Spec Sheet

Sensor

Aanderaa Conductivity Sensor 5990B

Sensor Type

Inductive Conductivity & Temp (CT)

Conductivity

Range

0 - 7.5 S/m (0 - 75mS /cm)

Resolution

0.0002 S/m (0.002 mS/cm)

Accuracy

±0.018 mS/cm

Typical Drift

<0.0001 S/m per month (0.001 mS/cm per month)

Response Time (90%)

< 0.5 sec*

Salinity Accuracy_{(at 15.0 °C and 42.0 mS/cm)}

0.06 PSU

Temperature

Range

–5 to 40 °C (23 to 104 °F)**

Resolution

0.001 °C (0.0018 °F)

Accuracy***

±0.05 °C (0.032 °F)

Response Time (63%)

< 1.2 seconds

* Dependent on flow through cell bore
** Calibrated range is 0 to 36 °C (32–96.8 °F)
*** For highest accuracy the sensor has dual temperature - internal and external
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Additional Specifications

Sampling Interval

2 sec - 255 min

Maximum Depth

50 m

Weight

0 - 7.5 S/m (0 - 75mS /cm)

Size (Dia. x Len.)

~36 mm × ~122 mm

Materials

Epoxy coated titanium

Interface Standard

Bristlemouth-enabled

Power Supply

Spotter’s Li-ion battery (solar-rechargeable)

Deployment & Best Practices

Configuration Options
Ideal for moored coastal deployments with one Spotter or a network. Integrate up to two more devices (e.g. oxygen/acoustics) per Smart Mooring (max 3 total).

Remote Configuration & Controls
Direct control via Spotter Dashboard, binary/ASCII commands, and Sofar remote support.

Maintenance
Rinse with fresh water after retrieval.

Explore Configuration

Data Access & Analysis

Spotter Dashboard
View real-time data and insights

API Access
Retrieve data programmatically with our secure API

Onboard Storage
Download data via SD card for offline analysis

Transmission
Satellite and cellular options

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