Digital Angle Gauge - (ANG180)The Triplett Model ANG180 Digital Angle Gauge detects the degree of offset from true level from 0 to 180 with 0. 1 resolution. It features single and dual axis calibration and a user programmable target angle with audible alarm. The Zero button sets a user reference plane other than true horizontal level. The magnetic base attaches to pipes, table saws, and other ferromagnetic surfaces and the V groove on the top and bottom surface easily aligns to