GemRed XSB Level Box Digital Protractor Angle Gauge Product Description XSB is base on 82412 level box. XSB digital protractor/angle gauge provides relative and absolute measurements as well as zero setting to any position. Exact reversible LCD is convenient to read. Small and light, it is really easy to be carried and used. Measuring plane contains magnets which can be attached to the surface to be measured. It is especially easy to measure the pitch of helicopter, bevel angle of miter saw, automobile test and repair and so on. Digital Protractor/angle gauge Applications Setting pitch angle of helicopter Setting blade angle of Miter Saws Setting blade angle of Circular Saws Tool setting on Lathes Setting workpiece angle for milling Drainage angles and run off slopes Grader and tractor work alignment Platform monitoring Features with wide measuring range of +/-180 degree (0 ~ 360 degree) with 0.1 Repeatability Powerful built-in magnets on the base secures the attachment to any iron surface Easy-read large readout LCD display Fast and accurate measurements Auto power off after 5 minutes of no operation Accuracy: +/- 0.1 degrees at 0 and 90 degrees and 0.2 degrees the remainder Resolution: 0.1 degree Measuring range: 2*180degree Waterproof: IP54 Power: 1*AAA battery