Key FeaturesElectronic digital caliper - easy to read LCD displayPrecision Round Pin Jaw - 2mm diameter by 5mm long round pin. Applications include measuring external recesses, circlip grooves and stepped work pieceMetric or Inch Display - Direct conversion between metric and imperial display. The display can also be set to zero at any positionHardened Stainless Steel Construction - Precision ground and hardened measuring surface and slidePin Diameter - 2mm.Included with the Digital Caliper - Battery, instructions and storage caseWorking Temperature - 0 ~ 40C