CalipersExternal Product ID Type : Not AvailableTwo Measuring Modes: this electronic vernier ruler is easy to operate, just One button quick change between inch and millimeter without wasting time finding different tools to measure SAE or Metric partsMeasuring Range: digital caliper range available in 0 - 6 (0 - 150 mm), completely meet daily needs. The portable size means it\s easy to carry out for both indoor and outdoor workWhat Makes This Digital Caliper Accurate - Resolution: 0.01 / 0.1mm Accuracy: +-0.2mm. Accuracy is the base of choose a caliper. FstDgte digital caliper offers accurate measuring.Higher Quality And Wide Applications: large LCD screen for easy and clear reading, better looking, smooth sliding. In 4 ways, it offers internal, external, depth and step measurements.Power And Customer Service: The electronic ruler measuring digital vernier caliper is powered by 1 x SR44 battery(included).