Triton 500 Advanced full-color navigation that's amazingly easy! 3-axis electronic compass and built-in barometer offer enhanced navigation capabilities. SD-card compatibility enables use of unlimited optional detailed maps and other user generated content. Rugged and waterproof to take you anywhere Amazing ease-of-use - Reinventing handheld GPS, simple menus, instant access buttons, intuitive scroll pad and crystal clear graphics let you navigate without the need for a Ph.D. 3-axis electronic compass - Clearly see your direction no matter how you hold your GPS, even when standing still Barometer - Sensitive barometric pressure readings offer advance notice of changing weather and assists in providing accurate elevation Full-color 2.2" display - The large display shows maps, simple menus, navigation screens and other data in brilliant color SD-card compatibility - An invaluable feature enables you to use an unlimited amount of map data for topographic, marine and vehicle navigation. Store tracks, routes, geocaches and more Add detailed maps - Upload optional marine cartography, topographic maps, and more, including the highly-detailed and feature-packed National Geographic Mapsto the available memory or SD card Built-in maps - Basemap of the 48 contiguous United States, Alaska, and Canada (major highways, city centers, parks, lakes and more) plus worldwide geographic boundaries Points of interest - Preprogrammed points of interest include parks, city centers, airports, historical monuments and more 3-meter accuracy - SiRFstar III chipset and integrated multidirectional antennae offer superior GPS accuracy using the Wide Area Augmentation System $249.95 Please call 1-908-642-8579 or e-mail us at NCTackle@aol.com with any questions. Thank you for shopping with us! FREE SHIPPING ON ORDERS OVER $250!