?? Ruler material: plastic carbon fiber
?? Header Material: ABS plastic
?? Scale process: magnetic stripe foil
?? Range: 0-150mm
?? Battery Type: LR44 / SR44 1.5V (comes with an LR44 batteries)
?? Resolution: 0.1mm / 0.01inch
?? Error: !#!amp!*!plusmn; 0.2mm or less

? ?Features:
?? 1. anywhere cleared
? 2. Metric conversion
? 3. manual power switch
? 4. anywhere switching power supply.