iGAGING USA The iGaging SpeedMic allows you to take accurate measurements (.00005") very quickly and have the capability to send the data to a computer with the option hand and foot triggers. This is like have a very accurate micrometer. Includes a spare 2032 battery. - Absolute origin encoding - IP65 protective rating - 0-1inch / 0-25mm - Data output port - Spring loaded movement - Ball attachment (included) - Fast and Accurate - 3V CR2032 batteries 2 pieces (included) - Fast and free shipping -Certificate of Accuracy included.