The GPS 72 is a low-cost solution for land or marine navigation designed to provide precise GPS positioning using correction data obtained from the Wide Area Augmentation System (WAAS).Designed to provide precise GPS positioning using correction data obtained from the Wide Area Augmentation System (WAAS). A suitable replacement for the popular GPS12, the GPS72 offers a large 4 level grayscale screen and a dedicated GOTO button.The GPS 72 provides 1 megabyte of internal user memory to be used for storing downloaded points of interest data (available from the European Road & Rec CD). This 1 megabyte of storage area is preloaded from the factory with worldwide cities (populations greater than 200,000) and nautical navigation aids such as lights, buoys, sound signals and day beacons.The Garmin GPS 72 + Marine Pack is waterproof and includes an International Marine Database as well as a M.O.B key. In the box: GPS 72 Cigarette Lighter Adaptor Marine Mount Carrying Case Wrist Strap Owner's Manual Quick Start Guide