GEONAV 4C introduces a new concept of chartplotter. With its unique features, it can be installed on the boat and linked with NMEA instruments and, in the meantime, it can be used as a handable instrument thanks to the AA batteries, rechargable or alcaline. GEONAV 4C is equipped with annexed rechargable batteries which automatically work when the instrument is linked to the current. Fully wateproof (IPX7), it is equipped with a TFT sunlight visible colour display. The marine cartography and the navigational information (tracks, course, points of interest…) can be stored on the Compact Flash cartridge which, according to its dimensions, can store an unlimited quantity of data. This avoids every kind of data downloading form PC or CD Rom. GEONAV 4C uses Navionics Gold cartography with the same detail level of the great chartplotters to be installed. GEONAV 4C, for sea, for you!