• Heavy-duty stainless steel construction
• Convenient auto-off feature
• Three mode digital display: Decimal Inches, Fractional and Metric
• Inside, outside, depth & step measurements
• Accuracy: +/- 0.001" +/- 0.02mm
• Resolution: 0.0005", 0.01mm, 1/64"
• Power Source: SR44 battery (included)