The KONA application pairs with the O2CPX table-top analyzer-with the gold-standard, long lifespan, fast O2 sensors-to provide next-generation cardio-pulmonary exercise testing (CPX) capabilities. The intuitive interface makes it easy for anyone to perform accurate tests. Sensor Calibration is quick and the mouthpieces do not need to be calibrated. Test results can be analyzed in 2560x1440 resolution and 16:9 aspect ratio graphics and custom reports can be generated. A multi-station, shared, relational database version is available, which allows for multiple tests sites and the ability to review results anywhere, on Microsoft Windows devices.