Will put your boat within 3 meters of your waypoint in most situations great for revisiting fishing hotspots. | Interfaces seamlessly with charting systems, track plotters, autopilots and other NMEA-0183 systems. | Corrections are uplinked to satellites for complete U.S. coverage and out to 200 miles offshore. | All components housed in a single compact unit for convenient installation. | Rugged, weatherproof construction.