Tough enough to withstand rain, sunlight and saltwater spray, the case is fully gasketed and waterproof to IPX7 standards. The 3005C's slim-line design makes it easy to install in cabin bulkheads or open cockpits, and its smaller size makes it work well as a secondary unit for a boat already rigged with the Marine Network. Integrate Easily with Garmin Marine Network The 3005C connects easily to the Garmin Marine Network, so you can interface with additional MFDs and add remote sensors, radar and sonar. For even more options, the GPSMAP 3006 and 3010 also provide a remote control, VGA output and video input options. Add More Marine Maps The 3005C accepts optional BlueChart marine cartography, which provides detailed offshore maps, and includes an enhanced worldwide basemap. Plus, with the latest software, the 3005C can accept regional BlueChart g2 data cards ? g2 brings you 3D maps, tides and currents, depth contours, navaids, port plans, marine services, points of interest (POIs), photo references and more. GPSMAP 3005C: See the big picture with this full-featured plotter