Suunto A-30 USGS Compass, Northern Hemisphere

Suunto A-30 is a reliable baseplate compass for navigating and surviving in extreme conditions. Depending on the variant, A-30 comes with Metric UTM scales and inch ruler or USGS UTM scales.

The Earth’s magnetic field does not flow evenly between the magnetic poles along the surface of the planet. To compensate for the natural tilt in the magnetic field, Suunto compasses use one of two balancing systems and you should choose the variant best serving your needs.

One is a two-zone system with needles balanced for either the northern or southern hemisphere. The second is a unique globally balanced system. A single needle is balanced to work anywhere in the world. This is achieved by a breakthrough construction allowing the needle and magnet to tilt independently.

Stable Operation

The compass liquid used by Suunto is specially formulated to provide damping over a large temperature range while preventing the needle from sticking.

Detachable Snap-Lock Lanyard

The lanyard with wristlock is easy to detach for working with the map.

Other Great Features

Including control marking holes, exceptionally fast and stable needle, a baseplate with magnifying lens, and luminescent markings for low light.