SPI Digital Micrometer to USB Direct Interface Package This package allows you to measure products with a 2-3" Electronic Micrometer, and then send that data to ANY Windows-based software program. The incoming data is treated like a keyboard entry, so whenever you can type in data is where the incoming data will be placed. The USB Direct Cable has a data send button incorporated into the cable, and it also has a foot-switch jack that will allow you to plug in an optional foot-switch to make sending data extremely easy. Package includes 1 each of the following... Electronic Micrometer USB Direct Cable Micrometer Specifications include... 2-3" / 50-75mm Measuring Range 0.00005" / 0.001mm Resolution + 0.0002" Accuracy Carbide Measuring Faces IP65 Rated Protection Short Form Certificate of Calibration included