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Product DescriptionFully loaded, the Sierra is the ultimate outdoor GPS system. Ready to go out of the box, the Sierra is preloaded with over 3GB of detailed topographic maps, advanced hill shade, roads, and points of interest. Easy to use in all weather with either the 2.7" color touchscreen or the physical keys. Video, picture, and MP3 players are included on the unit. Accepts optional outdoor mapping cards as well as GPX trail, geocache, and waypoint files from web communities and other sources. Save up to 4,000 waypoints, 500 routes, and 100 plot trails. IPX7 waterproof rating. 15 hour battery life with two AA batteries (not included). Expandable microSD memory up to 32GB.
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Q:Would this unit be suitable for marine use?Asked on 4/24/2012 by Anonymous from Portage Michigan