The Moore & Wright Digital Protractor is easy to use and has strong magnets on all blade edges to give a more accurate reading. Its hold function has a reversible reading and a large LCD.Specifications:Accuracy: ±0.2°.Range: 360°.Resolution: 0.05°.1 x Moore & Wright Digital Protractor 200mm (8in).Specifications:Size: 200mm (8in).Accuracy: ±0.2°.Range: 360°.Resolution: 0.05°.PTDMAW50502