A new compact gauge is designed to provide accuracy, versatility, and durability. It features four measuring modes: real time, maximum, minimum, and mean. The unit has an auto measuring range from 0 to 20,000 rpm with resolution up to 0.01 at low speeds; and it measures surface speed and distance up to 2,000 fpm with an optional 12-in. wheel. This battery operated precision gauge measures in 12 different units: rpm, fpm, ipm, mpm, ypm, cpm, inch, yard, feet, meter, centimeter, and total revolutions.