A Sighting Optic — allows you to read datas directly, and the Vertical Lubber line of the sighting optic improves its accuracy and decreases its errors.
Fluorescent Light Design — Luminous magnet arrow and compass card allows you to read data in dark environment after absorbing enough sunshine.
Compass and Clinometer Function — This is also a clinometer, enable to measure height and slopes.
Multifunctions — Foldable metal lid, Floating compass dial with 360° scale, Adjustable prism lens, Waterproof Shakeproof.
High Strength Engineering Metal — capable of working under extreme weather condition, suitable for Camping, Climbing, Boating, Exploring, Hunting, Hiking, Geology and Other Outdoor Activities.