4 map scales for easy navigation on a variety of maps. Dial graduations in both degrees and mils. Works flawlessly in temperatures ranging from -50° F to 150° F. Designed to last with a Navalon baseplate and waterproof, shockproof and sand proof housing. Built to the same demanding specifications as our military compasses. Incorporates the same military-grade parts and materials found in our Tritium Lensatic Compass. Proudly made with the highest quality in the U.S.A. NSN: 6605-01-625-2819