Buy Portable GPS

This offshore mariner's chartplotter flush-mounts easily in your boat and sports preloaded BlueChart g2 maps for the coast of the U.S. and Bahamas. The GPSMAP 540s also features a 5" QVGA display and simple, straightforward buttons and menus. You can add the optional BlueChart g2 Vision SD card for even more enhanced features.The 540s has preloaded detailed maps cover all U.S. coastal areas and the Bahamas. For other areas, the 540s has a worldwide basemap with satellite images in place of more traditional maps. The SD card slot makes it easy to add additional maps without connecting to a computer. And with just a few buttons and a simple, intuitive interface, the 540s makes navigating your way through the water easy.The GPSMAP 540s comes with a powerful dual frequency transducer that clearly paints depth contours, fish targets and structure whether you're fishing in fresh water or off the coast. It's also CANet compatible, so you can share sounder data with another chartplotter on your boat.