1.Product name:Digital Protractor
2.Material:Plastic Carbon Fiber
3.Measuring Range:200mm
4.Resolution:0.05°
5.Accuracy:±0.2°
6.Function:ON/OFF,ZERO,HOLD/REV
7.Folded length:200mm/7 inch
8.Expanded length:400mm/14 inch
9.Working temperature:0~50℃
10.Battery:CR2032 3V lithium battery