Accurate, portable navigation tool with built-in compass and map ruler — designed for outdoor explorers who need reliable bearings and quick distance checks in the field. Key benefits Reliable navigation: integrated compass provides accurate headings so you can orient yourself and follow routes with confidence. Simple map work: built-in map ruler lets you measure distances and plot bearings directly on topographic or trail maps, speeding route planning and course correction. Ready for the outdoors: lightweight, durable, and waterproof construction stands up to rain, mud, and rough handling while remaining easy to carry. Saves time and reduces risk: combines navigation and map-measurement tools in one compact instrument, eliminating the need to carry separate items. Features and attributes Function: combines a magnetic compass and a map ruler for navigation and map reading. Compatibility: works with standard topographic, trail, and field maps for on-trail or off-trail navigation. Size and portability: compact, pocket-friendly design that slips into a pack, vest, or pocket for quick access. Durability and performance: built to be lightweight yet robust and waterproof to maintain performance in wet or demanding environments. Practical use scenarios Mountain hiking: quickly orient yourself at trail junctions, verify bearings, and measure distances on a topographic map to stay on course. Wilderness camping and emergency navigation: plot a heading and estimate distance to water sources, campsites, or a trailhead when visibility is limited. Terrain mapping and outdoor education: measure map distances and teach map-reading skills during geology fieldwork, school outings, or scout activities. Who this is for Outdoor lovers, backpackers, and campers who want a compact, dependable navigation aid. Geological explorers, field researchers, and students who need a practical map-reading instrument for terrain work. Anyone who needs a simple, weather-resistant tool for accurate navigation and map measurements. Practical, straightforward, and designed for real-world use — a single, durable tool for compass bearings and map measurements when you need them most.