SUUNTO A-40
A compact and durable high-accuracy compass with luminous bezel and markings. The integrated curvimeter together with centimeter, inch and conversion scales make it ideal for the demanding navigator.

SUUNTO A-RANGE
User Friendly Recreational Compasses

The A-Range of recreational compasses is a series of handy, well designed, navigational aids which are assets in any environment. All four models in the series ( A-10, A-20, A-30L and A-40) are compact, high-accuracy instruments made from durable, clear, scratch resistant acrylic that have been ergonomically designed to fit into the palm of your hand for optimum ease of use. These light-weight compasses feature a fixed declination correction scale as well as a patent-pending lanyard snap-lock enabling the compass to be easily detached from the lanyard.

Product Features
# Two Zone System
# fixed declination correction scale
# detachable snap lock lanyard
# jewel bearing
# integrated curvimeter ( map measurer) , conversion scales
# baseplate with magnifying lens
# luminous bezel and markings
# control marking holes
# cm or inch scales
# size: 57 x 120 mm / 2.2" x 4.2"
# weight: 38 g / 1.3 oz

Two Geographical Balancing Zones
The vertical intensity and direction of the earth' s magnetic field, the inclination, influences the horizontal plane of a compass needle according to the latitude where it is used. Due to inclination, compasses must be balanced for different geographical zones in order to keep the needle in a horizontal position.

Previously, the globe was divided into five different balance zones in which specific compasses functioned. However, as people travel more and more, the need for a compass with a greater geographical range has increased. Thanks to Suunto' s ' Two Zone System' there are only two balance zones to consider in compass use - the northern hemisphere and the southern hemisphere. In practice, this means that a Suunto compass designed for the northern hemisphere will still work for a fair distance into the southern hemisphere, and vice-versa.

Suunto also makes globally balanced compasses, which can be used accurately all over the world.