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: ± 0.2mm or less

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