Folding Digital LCD Angle Finder Ruler 360° Protractor 200MM/300MM Lumberjack Features: Instant and clear digital readout for easy viewing. Transparent ruler, metric-inch double system, easy to read. With automatic power off function, save energy consumption, extend battery life. Any position can clear zero, convenient absolute measurement and relative measurement. Data can be held to facilitate the measured reading. Wide applications: hospital, woodworking, building materials, school teaching AIDS, student stationery and mechanical processing ect. Specifications: Color: As pictures show Measuring range: 0-360 ° Length Measuring Range: 0-200mm / 0-300mm (optional) Ruler Scales: Inch and Metric Resolution: 0.05°/ 3' Battery: CR2032 3V（not included） Usages: Measurement of angle and length Package included: 1 X Digital angle ruler