Large display for clarity. Fast response speed. Zero reset. Dual readout mm/inch. Multi-use, inside, outside, depth and step measuring. Knurled thumb grip for precise movement. Conforms to: EN 61000-6-3:2007 EN 61000-6-1:2007 Resolution: 0.01mm/0.0005" Accuracy: ±0.03mm/±0.001" Extra batteries available - Order Code EDI -904-4000K