The Starrett Fractional Display Caliper is lightweight, comfortable, and easy to use. Made from hardened stainless steel, it has a slim profile and a clear LCD display, reads 0.01mm, .0005in or 1/64in. The display includes function buttons for zeroing and unit switching (mm, inch, F). A fine adjustment thumb wheel allows for easy measuring and a lock screw to secures the slide position. To save battery life it has an auto-off after 5 minutes. It also features a low battery warning system with flashing display and a USB port for data output. Comes with: a battery cover wrench for easy access and a hardwearing case. Conforms to DIN862 standard. Specifications: Power: Single SR44/LR44 Long-life Battery.Max. Measuring Speed: 1.5m/sec or 60in/sec. 1 x Starrett Fractional Display Caliper 300mm.