Fowler 0-1" Economy Electronic Indicator with Bluetooth Features include... 0-1" / 25mm Measuring Range 0.00005" / 0.001mm Resolution 0.00035" / 0.008mm Accuracy Direct Inch/Metric Conversion Bluetooth Communications Auto Off feature Lug Back and Flat Back Ceramic Ball Contact Point Includes certificate of Calibration Traceable to NIST
