Aluminum alloy digital display angle ruler Type:With Battery allowing you to walk freely

allowing you to walk freely even in bad weather

Easy installation

and it is very comfortable to wear

sticky strong heat resistance

Dual Voltage: Dual Voltage 100-120V & 220~240V

Aluminum alloy digital display angle ruler Type:With Battery allowing you to walk freelyFESTURES: [Digital Angle Finder Protractor] with High Accuracy, Delicate Design and Modern Appearance, An Interior Designer Should Have One! [Backlit LCD Display] Come with Backlit LED Display Which Makes it Possible to Read the Data Clearly, Even under a Low Light Circumstance. [High Accuracy] Angle Range is 0 225, Length 18. 15Inch, Resolution: 0. 1 , Measuring precision: 0. 5. [Data Hold] If You Want to Use Data Holding Function, You Need to Press