Silva Expedition 4 Compass For Advanced Outdoor Use - Magnetic North Balanced The 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, more demanding trips or when you want to have the possibility to navigate with more advanced and precise techniques. Expedition 4 is made by robust material and withstands the toughest of conditions. Furthermore it features a large 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. 2 scales, soft and bendable, easy to place directly on to your route on the map. The Expedition 4 is a compass for experienced navigators. MAGNETIC NORTH BALANCED: ONLY FOR USE IN ZONE 1 (EUROPE, NORTH AMERICA, NORTH AFRICA, MIDDLE EAST, AND NORTHERN ASIA) Features: Detachable distance lanyard with scales to measure longer distances. Map measuring scales; mm, inch, Romer scales, 1:25k, 1:50k, 1:63.360k. DryFlex™ Rubber grip – easy handling and great friction against the map. Built in permanent adjuster for magnetic declination. Luminous markings that enables night navigation. Robust material that withstands tough treatment and conditions. For advanced users and rescue workers. Stencil holes. Large magnifying lens for precision map work. Technical Features: Article number: 35692-8011 Product Familiy: Expedition Compass Type of compass: Silva 1-2-3 System Baseplate Suitability: Advanced outdoor enthusiasts / Rescue workers Accuracy: ± 1° Altitude use: 5000m @ -15°C  /  5°F Declination adjustment: No Graduation: 360°, 6300°, 6400° / 360° (360° inside the capsule) Illumination: 4 hours after activation in light Magnifying lens: Yes Material: Acrylic Patented red/black N/S lines in capsule: Yes Sapphire jewel bearing for friction-free movement of the compass needle: Yes Scales: mm, inch Sighting System: No Silicon friction feet: Yes UTM position plotting scales (Romer scales): 1:25k, 1:40k, 1:50k Water resistance: IP68 – (more than 100 m) Variant: Magnetic North (MN) Dimensions: 126 x 60 x 10 mm / 4.96 x 2.36 x 0.39 in Weight: 36g / 1.27oz Silva Quality: The Silva quality ensures durability and excellent readability; the baseplate compass is made from clear and scratch resistant acrylic. Silva 1-2-3 System: Place your compass on the map and use the baseline to make a straight line between your current position and your destination. Make sure Direction of Travel arrow points towards your destination. Turn the compass housing until the red part of the north/south arrow is parallel with the map meridians and points north on the map. Lift your compass from the map and hold it horizontally in your hand. Turn yourself and the compass until the red end of the needle is inside the red north/ south arrow. Now the direction of travel arrow will point towards your destination. Take a landmark and start moving. Enjoy! NOTE: If using a mirror-sighting compass: angle the mirror/lid approximately 45 degrees towards yourself and hold with straight arm out in front of you. Now, while looking in the mirror to see that the needle aligns with the red/black N/S arrow, sight above the mirror (using the sight) towards an object in the field in line with the direction of travel Learn About Silva Balacing Zones: The Earth and its magnetic zones work in mysterious ways, and to navigate accurately you need to make sure you have a compass for the place where you are at the moment. Different compasses work for different parts of the world. Hence be aware if you plan for an adventure on the other side of the world! There are three different balancing zones for compasses: Magnetic Equator (ME), Magnetic North (MN) and Magnetic South (MS). However, at Silva we also have global compasses that works in any magnetic zone.