Probably the most resourceful compass in the world for artillery; target acquisition and command posts.
The Expedition 54B Military Compass is a unique compass featuring both an optical precision sighting system and a SILVA 1-2-3 SYSTEM compass in the same unit, giving unbeatable precision and versatility in the field.
Bearings can be taken with accuracy to within half a degree. 6400 mils on the graduation ring and 6400 mils and 360 degrees on the sighting scale. With beta light i.e. will give continuous light up to 7.5 years.
This product is Southern Hemisphere optimized.