Long Range Nib/Knife Edge Jaw Digital Caliper, Accuracy +/- 0.001 in, Data Output Type Cable, Wireless, Long Form Calibration Certificate No, Jaw Actuation Type Slide, Jaw Material Stainless Steel, Maximum Measurement – Inch 20 in, Maximum Measurement – mm 500 mm, Measurements Inside, Outside, Step, Battery Size CR2032, Caliper Material Steel, Case Type Plastic Case, Display Type Digital, Functions Stand-By Mode After 10 min, The Instrument Keeps the Zero, Includes Plastic Case