Digital Protactor 1. Feature: *360 ° Measure range * Display always read upright, no matter which way the level is turned * Simple calibration requiring no special fixtures *Versatile measuring tool, angle finder. Protractor lever three in one. *3V lithium battery 2000 hours in continous use 2. Tech data: Range: 4*90 ° (0-360 ° )Work temperature: +5º C+4º C Work humidity: ≤85%RH Resolution: 0. ° Accuracy: 0 ° And90 ° ≤0.1 ° The rest≤0.2 ° Power: CR2032 3V lithium battery For more details, please kindly visit our website. In addition, we also supply the following products: (1) Measuring Tools------Vernier Calipers, Electronic Digital Calipers, Micrometers, Dial Indicators, Squares, Protractors, Gages, etc (2) Machinery Accessories------Tool Post and Holder, Collects, Chucks, Drill Chucks, Milling Arbors, Sleeves, Vises, Working Tables, etc (3) Cutting Tools------including Drills, End Mills, Milling Cutters, Slitting Saws, Saw Blades, Reamers, Taps & Dies, Tool Bits, Carbide Inserts, etc (4) Machinery------Metal Working Machinery, Woodworking Machinery, Shear Bending and Rolling Machine, etc
