zhart Vernier Caliper Digital 150 mm/6-Inches LCD Display This professional grade digital caliper is a hi-tech precision instrument which is made out of surgical grade stainless steel.It can be used to measure internal and external distances with extreme accurately.Using the digital calipers is easy, measurements are clearly displayed and can be switched between metric or imperial with a simple push of a button.Features:Material is stainless steel & plastic with LCD display which is powered by 1 x LR44 battery (included).Zero setting at any position.Provides clear readings.Readings can be displayed in either inch or millimeter format.With locking screw for accuracy.Measuring Range: 0-150 mm.Great gift.Comes with english instruction manual.Accuracy: + 0.02 mm or 0.001 inch (lt;100 mm), + 0.03 mm or 0.001 inch (gt;100 - 150 mm).Resolution: 0.01mm or 0.0005 inch.Repeatability: 0.01mm or 0.0005 inch.Package Includes: 1 x digital caliper, 1 x 1.5V battery, 1 x user manual.