Aanderaa 5218 Wave & Tide Sensors

The Aanderaa 5218 Wave & Tide Sensor is designed for measuring wave and tidal conditions in SeaGuardII platforms or external measurement systems using the RS-232 interface.


  • Smart sensor technology for plug-and-play interface
  • 2Hz and 4Hz sampling frequency
  • Maximum operating depth of up to 90m
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The Aanderaa 5218 Wave & Tide Sensor is a compact, fully integrated sensor for measuring wave and tidal conditions. The sensor is designed to be mounted on the Aanderaa SeaGuardII top-end plate or in other measurement systems using the RS-232 interface.

The sensor application areas are in fixed installations, either deployed in a seabed installation in shallow waters or mounted onto a fixed structure in the upper water column. Typical applications for the sensor are measuring waves and tides in ports and harbors, marine operations, weather forecasts, and climate studies.

The tide measurement is an average of the hydrostatic pressure measured over a time period of 10 seconds to 8 minutes (integration time configurable by the user). The update interval is between 1 second and 255 minutes. The wave measurements are based on the pressure time series measured over a time period of 64 seconds to 17 minutes (configurable by the user). The update interval is between 1 second and 255 minutes.

The wave and tide sensor output parameters are Pressure, Tide Level, Tide Pressure, Temperature, Significant wave height, Maximum wave height, Mean period, Peak period, Energy wave period, Mean zerocrossing period, Wave steepness, and irregularity of sea-state. Since all calibration and temperature compensation data are stored inside the sensor, the parameters are, by default, presented directly in engineering units without any external calculation. The sensor also provides raw data on the pressure and temperature measurements.

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Aanderaa 5218 Wave & Tide Sensors
5218 Wave & Tide Sensor with Lemo connector, 0-30m, RS-232 output
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Aanderaa 5218 Wave & Tide Sensors
5218 Wave & Tide Sensor with Lemo connector, 0-90m, RS-232 output
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