Visibility aid - allows you to read data directly, and the vertical line of the visibility aid improves accuracy and reduces errors.

Phosphorescent Light Design - The luminous magnetic arrow and compass card allow you to read data in a dark environment after sufficient sunlight absorption.

Compass and Clinometer Function - It is also a clinometer, capable of measuring heights and slopes.

Multiple Functions - Foldable metal lid, floating compass with 360° scale, adjustable prism, waterproof and shockproof.

High Durability from Mechanical Metal Construction - capable of operating under extreme weather conditions, suitable for camping, climbing, sailing, exploration, hunting, hiking, geology, and other outdoor activities.