Material and build: Crafted from ABS plastic for durability and lightweight handling. The compass integrates a map ruler and multiple scales for efficient map reading and field navigation. Core functionality: Waterproof design Combined with an orienteering precision, it provides reliable directional readings and supports measuring distances and directions directly in the field. Navigation and planning features: The multifunctional scales aid in quick route planning and course corrections, helping you stay on track in unfamiliar terrain. Practical reliability: Designed for outdoor use in variable conditions, the compass supports precise positioning and direction finding when exploring broad natural expanses. Compatibility and performance: Works with standard map readings and scales, enabling seamless transition from map to ground navigation without extra tools. Use scenarios: 1) Mountaineering and expeditions: Use the builtin map ruler and scales to align your map with terrain features, measure distances to the next waypoint, and plot a safe ascent route in challenging conditions. 2) Remote hiking with limited signals: Rely on the waterproof compass to determine bearings and distances, facilitating accurate navigation when GPS is unreliable. 3) Emergency orientation in low visibility: Establish a reliable course by measuring directions and distances, then craft an effective or bailout plan based on your bearing and map data.