The MarCator 1081 Digital Indicator is Mahr Federal's latest economy product. Its features include a measuring range of 0.5" (12.5 mm), resolution to 0.00005" (0.001 mm), a high-contrast LCD display, and IP51 protection against dust and falling water according to IEC 529. It connects with USB to computers without requiring a multiplexer. Optional Digimatic and RS-232 connections are also available, along with optional wireless connections. The 1081's measurements can be made in inches or millimeters, counting direction can be reversed, and a preset function allows entry of a numerical value. A lock function prevents unintentional activation, a capacitive measuring system extends battery life up to two years, and measuring speed is a speedy 60" per second (1.5 meters/sec). Operating temperature range is 10°C to 40°C. Accessories include additional contact points, holder, sensor lever, lug back, and adapter bushing for the mounting shank.