Functions: ON/OFF, RESET (Set display to zero), mm/inch, Reference-Lock/Unlock Auto-ON/OFF, Hold, DATA. Integrated Wireless data transmission Immediate measurement due to the Reference system Excellent resistance against dust, coolants and lubricants, protection class IP67 Dirt wipers are integrated in the slide Life of the battery up to 3 years High contrast LCD with 11 mm high digits Lapped guide way Slide and beam made of hardened stainless steel Measuring blades for inside measurement Step measuring function Locking screw Supplied with: Case, battery, operating