Military/Geology metal compass with inclinometer sighting compass Extra-large compass / compass march / military compass with integrated inclinometer (0-90 degrees and percentage) made of heavy, rigid metal Large liquid-damped compass wheel with balancing ring, transparent hinged cover with scale Prism lens system enables you the bearing and the reading the direction of objects (second compass scale, 360 degrees scale, at the edge of the compass dial for prism view), with diopter lens system Robust metal housing in XL-size: Works in all weather conditions, even with direct sunlight, map scales on the edge of the housing, water balance for horizontal alignment