8099 ECLIPSE Compass Works as both a baseplate and mirrored sighting map compass. * Field reference cards & lanyard * Map magnifier * Circle-over-circle alignment * USGS map scale 1:24k, ft, UTM. mile * Declination adjustable * 3 inclinometer systems * 1° graduations * Magnified read out * Size: 4.1" x 2.5" x 1"; Weight: 3.6 oz. * Pro: adds Bubble level for more accurate strike and dip measurements and field ref. cards for professional applications