External Digital Caliper Gauge Range 3.2 in to 4 in 80 to 100 mm Resolution 0.0005 in/0.01mm Accuracy +/-0.0016 in Dimension Type Inch/Metric Jaw Actuation Type Lever Jaw Depth 2.165 in Maximum Measurement - Inch 4 in Maximum Measurement - mm 100 mm Measurements Outside Minimum Measurement - Inch 3.2 in Minimum Measurement - mm 80 mm Operation Type Digital Battery Size CR2032 Display Type 320 Degree Rotating Display with Digit and Analog Reading