Angle GaugeWide measuring range of 0 ~ 360.Angle and slope readout conversion. Relative / absolute measurement interchange at any position. 3 ButtonZ-ero features to determine relative angles; Hold features to freeze readouts ;ON/OFF to power on/off. Magnetic Angle Measurement ToolWith built-in magnets in measuring surface can be adsorbed on the surface of metal objects and is not easy to slip off. Wide ApplicationsOur digital angle gauge, delivers fast and accurate measurements in car repair, table s-aw or miter sa-w blad-e measurement, machine manufacturing, engineering, and decoration, an indispensable tool for woodworking, construction, and machinery. Features: Multi-purpose Angle Gauge with 3 button functionality includes Zer-o features to determine relative angles, Hold features to freeze readouts and ON/OFF to power on/off. Compact and lightweight, easy to carry and use. Wide measuring range of 0 ~ 360. ABS Plastic enclosure, light weight, and durable. Relative / absolute measurement interchange at any position. Angle and slope readout conversion. LCD Display improves visibility. With built-in magnets in measuring surface, which is convenient to be attached to the object measuring workpiece. Power-off automatically in 5 minutes. Specifications: Wide measuring range: 0 ~ 360 Accuracy: 0.1 Resolution: 0.1 Power Supply: AAA*2 (not included) Dimensions: 56*56*30mm Weight: 70g Package size: 60*60*35mm Package list: 1 x Digital Protractor