Shimpo, MT-200, Contact/Non-Contact Pocket Tachometer w/6" Circumference Measuring WheelIIncludes:Contact/Non-Contact, Pocket TachometerThree AA BatteriesCone adapterFunnel adapterContact adapterMaster wheel (6″ cir.)Reflective tapeCarrying caseNIST certificateFeatures:Multiple measurement types in both contact or non-contact modes: total revolutions (rev); revolutions per minute (rpm); surface speed: m/min, y/min, ft/min, in/min; and length: meters, yards, feet and inchesNon-contact measurements up to 23.6" (60 cm) awayCompact, pocket-size design fits easily in the palm of the handMemory automatically stores minimum, maximum and last. Plus, 10 user stored readings of the process can also be recordedLong battery-life enables continuous operationInstant conversion of unitsLow battery and over range indicationNIST calibration certificate included with every unitThe MT-200 Combination Contact/Non-Contact Pocket Tachometer with microprocessor technology possesses the precision of the standard SHIMPO Tachometer line, yet within a compact, pocket-style enclosure. These battery-operated tachometers feature the same rugged, high quality components that have made SHIMPO tachometers the benchmark in the industry. The MT-200 provides users with the capabilities of measuring and recording speeds of rotational, linear and surface plus total length in both contact or non-contact modes. The user-friendly, value-packed units feature memory storage; quick selection unit's button; length functions; retrieval of last, maximum and minimum values; plus each unit comes standard with a free N.I.S.T. calibration certificate. Each unit ships in a protective carrying case which includes a cone adapter, funnel adapter and 6" circumference wheel.