Electronic Digital Caliper Made of hardened stainless steel Internal, external and height dimensions can be easily and accurately measured Linear capacitive measuring system Zero setting in any position With a small locking thumb screw which locks the jaws in place Base measuring function: Inside, outside, depth and step measuring With easy to read large LCD display Handy conversion chart at the back An ideal tool for a broad range of industrial and automotive applications Features: Measuring range: 0–150 mm/ 0–6 inch. Resolution: 0.01mm/ 0.0005 in. Repeatability: 0.01mm/ 0.0005 in. Accuracy: 0.02 mm/ 0.001 in. (100 – 150 mm) Maximum measurement speed: 1m/s Power: 2 x 1.5V SR44 (silver oxide cell) battery (included)