INSIZE Digital Caliper w/ Fractional Display Features include... 0-12" / 0-300mm Measuring Range 0.0005" / 0.01mm / 1/128" (fractional) Resolution Accuracy exceeding DIN862 Buttons: mm / in / fraction, ABS, on/off, zero Battery CR2032, with one spare battery Automatic power off Data output Hardened stainless steel construction Packed in plastic box Includes Inspection Certificate traceable to NIST