Calibration Devices, such as the EK1Pro and EK1Lite can be purchased here. Once you have purchased the device, you can purchase and download calibrations for your vehicle at ek1.sxthnk.com. SXTHNK uses a purchased credits system for downloading calibrations for your vehicle. The six steps to get started are on the homepage of ek1.sxthnk.com. The EK series of devices does not come with a calibration pre-installed.