For smart watches, the device scan the QR code to lock the smart watch through the camera, and transmits test data through Bluetooth connection. The controller is heated to water temperature, which can be real -time simulated body temperature. When the product is completely immersed in the water temperature, the watch is equivalent to-a thermometer to read a total of 60 sets of temperature data according to the cavity. The data is transmitted by the mobile phone Bluetooth and uploaded MES, comparing it with the actual temperature. Equipment has temperature calibration and testing functions.