Expedition 4 is an advanced level compass primarily used by rescue workers and outdoor enthusiasts who crave top level equipment. It contains everything you need in a compass and has added functionality for GPS. This full-size base plate compass is made for experienced navigators. The Expedition 4 compass is perfect for more demanding trips or when you want to have the possibility to navigate with more advanced and precise techniques. Withstands tough weather conditions Expedition 4 contains everything you need in a compass and has added functionality for GPS. It is made by robust material and withstands the toughest of conditions. Furthermore it features a magnifying lens for detailed map reading and a declination scale inside the capsule and includes a detachable lanyard. Thanks to its luminous markings it is possible to use for night navigation as well. Map measuring scales: 1:25k, 1:40k, 1:50k, mm & inches.