The Garmin GPSMAP 78S is a Handheld GPS unit built and designed for the treacherous marine environment. The Garmin 78S is preloaded with a shaded relief map for the US and has a built in 3-Axis electric compass and barometric altimeter.
The Garmin GPSMAP 78S is a Handheld GPS unit built and designed for the treacherous marine environment. The Garmin 78S is preloaded with a shaded relief map for the US and has a built in 3-Axis electric compass and barometric altimeter.