Digital Calipers available in a range of sizes which can be used for inside, outside, depth and step measuring. Features and Benefits: Large display for clarity, fast response speed, zero reset, knurled thumb grip for precise movement, and dual readout in mm and inch. Requires LR44H 1.5V battery. Approvals: REACH, ROHS. Standards: EN 61326-1:2013, EN 61326-2-2:2013.