This compass comes in a series of handy, well designed, navigational aids which is an asset in any environment. This A-30L compass has fixed declination correction scale which is useful when working in areas of large magnetic variation. Suunto compass is designed with Two Zone System, there are only two balance zones to consider, the northern hemisphere and the southern hemisphere. This A-30L compass is a high-accuracy instrument made from durable, clear, scratch resistant acrylic that have been ergonomically designed to fit into the palm of your hand. This lightweight compass also has a detachable snap-lock which allows the lanyard to be easily removed when you are working with the map. A-30L Features: Compact Compass, Two Zone System - Balanced for Northern & Southern Hemisphere, Fixed Declination Correction Scale - Ensure Precise Measurements, Jewel Bearing, Luminous Bezel & Markings - Help To Use The Compass In Dark Conditions, Inch Scale, Baseplate w/ Magnifying Lens, Control Marking Holes, Orienteering Compass, Detachable Snap-Lock Lanyard"
Excellent compass from Suunto. Jeweled needle swings freely and quickly settles on N. Markings are clear and legible. Ruler/scales, marking holes, and magnifying glass suit orientation needs. Illuminated bezel is handy for night reading, although it will need to be "charged" with plenty of sunlight or a flashlight beforehand. Detachable clip initially felt flimsy, but has held up so far, so can't complain yet. My only gripe is this model does not ..