Who needs a compass more than a globe-trotter? The Voyager series features a multi-zone balanced needle that will work regardless where in the World you are. An optic yellow base plate with different map measuring scales as well as a magnetic declination adjustment are standard on all VOYAGER compasses. A base plate compass with a traditional type of base plate. Built in magnifier for detailed map reading. Declination adjustment facility. Map measuring scales 1:250k, 1:25k, 1:24k, 1:50k, 1:63.36k as well as mm and inch scales.