Mini Digital Protractor Inclinometer Electronic Level Box Magnetic Base Measuring Tools Feature: Angle finder/protractor can provide fast and accurate measurement in woodworking, construction, machinery, telecommunications, automotive and other fields. 360 degree mini digital protractor inclinometer electronic level box magnetic b measuring tools. ABS plastic (lightweight and durable) Relative/absolute measurement interchange at any position Angle and slope reading conversion Portable size, convenient to use with other measuring tools and expand the measuring range The additional LCD screen is easy to read. Small size and light weight, it is really easy to carry and use. The measurement plane contains a disk magnet, which can be attached to the surface to be measured. It is especially easy to measure the angle of the helicopter, the angle of the miter saw, automatic testing and maintenance, etc. specification: Measuring range: 4 x 90° (0-360°) Accuracy: +/- 0.1 degree at 0 degree and 90 degree, the is 0.2 degree With horizontal bubble Resolution: 0.01 degree rating: IP54 Power supply: 2 x AAA batteries (batteries not included) Package Included: 1X Digital Inclinometer Level