Measures angles quickly and accurately to 15 minutes. Engine divided from 60° to 0° 60°. The level vial adjusts easily to a reference base of plus or minus 6 degrees and the vernier arm reads angle to 15 minutes. Detachable base magnets with magnetic keepers make measuring easier. The clinometer is favored by engineers, inspectors, pipe and steel fabricators, plumbers and electricians. Measures: 1.25” wide x 6” long x 4.75” high. Comes with durable plastic carrying case. Weight: 17 oz.