Digital Level and Bevel Gauge 2-in-1. CNC machined super flat surfaces and edges. Heavy duty aluminum alloy body, chrome finish. Laser level accurately extend level capabilities. 1/4 inch thread standard tripod mounting. Strong magnets on the bottom. Large clear LCD display, reversible reading. Bevel function: set up any surface as relative zero degree surface. Measuring: 4 X 90°. Resolution: 0. 05°. Accuracy: ± 0. 2°. Battery: standard 9V included.