The computer panel has USB output function which can make use of U-disk to export temperature and other test data. Plug in U-disk, the machine begins to automatic identification and import data into U-disk. During data import, press “Conform calibration” key, the flashing display of “USB” on display panel represents the data export is being on and not yet complete. After flashing for 5s, it exits and displays the actual temperature in refrigerator. lf the display panel display ALL in flashing mode, it means data export has been completed, and the U-disk can be removed from USB interface at this time and plugged in the USB interface of computer to read data.