Garmin GPSMAP 78S Wireless Marine GPS Tracker

Garmin GPSMAP 78S Wireless Marine Handheld GPS Tracker, 3-axis compass, barometric altimeter, crisp color mapping, high-sensitivity receiver, new molded rubber side grips, plus a microSD card slot for loading additional maps. 

Feature

2.6-inch TFT LCD display

Worldwide shaded relief basemap

 microSD card slot for optional mapping

3-Axis compass & barometric altimeter

Floats, buoyant

Built-in 3-axis electronic compass

1.7MB built-in memory