Link between perfectControl® or transducer (7721-7724) and PC. For adjusting and calibrating torque wrenches and torque screwdrivers. Produces calibration certificates in accordance with DIN EN ISO 6789, which can be printed out or saved as PDF files.as found / as left calibrations can be documentedgraphical representation of the torque progressionuser management17 languagesequipment testing system System requirements:PCMicrosoft Windows XP SP3 or later operating systemUSB connection