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Underway Systems

Underway systems provide long-term monitoring while mounted in research vessels or ships of opportunity (such as ferries, cruise ships, and freighters). Sea-Bird's underway systems include our shipboard thermosalinographs (SBE 21 and SBE 45) for measuring conductivity and temperature (and determining the resulting salinity, density, sound velocity, and other parameters of interest) and a hull temperature sensor (SBE 48).

Externally powered thermosalinograph for shipboard determination of sea surface (pumped-water) conductivity and temperature. Internal memory, acquisition of NMEA navigational data and remote temperature data, and capability to interface with auxiliary sensors.
Small, externally powered thermosalinograph designed for shipboard determination of sea surface (pumped-water) conductivity and temperature. Can be integrated with interface box for NMEA data and acquisition of remote temperature data.
SBE 48 Hull Temperature Sensor
Temperature recorder installed with magnets just below water line on inside of ship, providing shipboard determination of sea surface temperature.
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