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The authors present the development and implementation of a ‘tsunami enabled’ tidegauge which allows real time data to be returned from almost anywhere on Earth. At itscentre is a low power, embedded Linux platform, which performs the data logging andcommunications. This is attached to a radar and pressure sensors that are queried overa serial interface. Telemetry is through the Inmarsat Broadband Global Area Network(BGAN) system which allows a bi-directional broadband connection over Ethernet,permitting remote reconfiguration when required, and faster, more frequent tide gaugedata. Data transmission is over an internet connection with files containing one minutevalues from three sensors returned every five minutes