Crafted with high-strength engineering materials, this professional geological compass is equipped with a clinometer feature, allowing you to accurately measure elevation and slope angles. Its glow-in-the-dark capabilities, with both the magnet arrow and compass card luminescent after sufficient sun exposure, provide the added convenience for nighttime use or dark environments. The compact design includes a foldable metal lid, a 360-degree rotating compass dial, and an adjustable prism lens. It is both waterproof and shockproof, designed to perform reliably in extreme weather conditions. Ideal for a multitude of outdoor activities including camping, climbing, boating, exploration, hunting, hiking, and geology.