Electronic Internal Caliper Gage Features include... 1.18" - 1.97" / 30-50mm Measuring Range 0.0005" / 0.01mm Resolution 0.0015" / 0.05mm Accuracy 0.275" Tip Height 0.059" Tip Width LCD Analog / Digital Display IP63 Rated Protection SPC Output Function Include... Zeroset Preset Auto Power Off In / Metric Conversion Data Hold Min / Max Value Hold