GSM LAND

Explorer 557 GPS Chartplotter Navigation is easy with the new Explorer 557 dedicated chartplotterA simple-to-use menu structure and superb daylight viewable screen means you can enjoy your voyage whether it's across the bay or across an ocean. Rugged and waterproof, the Northstar Explorer is a brilliant choice for your navigation needs. Chartplotter 557 5" hi-resolution VGA color, chartplotter w/external antenna, cable, mounting brackets, yoke bracket etc., included Features and Specifications5" high resolution VGA color chartplotter640x480 pixel screenBuilt-in 32 MB regional background mapExternal antennaBuilt-in fuel computer - SmartcraftTM compatibleAutomatic Identification System (AIS) capabilityC-Map NT MAX Lite compatible.