Check the listing for details. 2In1 8In/200mm Digital Angle Finder Meter Protractor Ruler Measurement Tool. Condition: New. Listed at 13.99 USD. Features: 1. Professionally measure the inner and outer angles and angles of objects 2.0-360 ° complete measurement. 3.Easy to lock at any angle, compact, accurate measurement, easy to read. 4. With a locking knob, convenient to lock the angle at any position. 5. 5 minutes automatically shut down, induction automatically boot. 6.Button function: open / key, clear key, data hold button, degree and degree conversion button Size: 0-200mm:about 220mm; Measuring range: 0-360 ° Resolution: 0.1 ° Accuracy: ± 0.3 ° Working power: 3V Battery model:1*CR2032(not included) Operation time: 5,000 hours Operating temperature: 0 °C - +50 °C Working humidity: ≤85% Automatic closed screen time: 6min Usages: Measurement of angle and length Material:Carbon fiber + ABS Packing includes: 1*Digital Angle Ruler.