Inclusion Criteria:  1. Male or female aged between 0-100 years. 2. Patient agrees to participate in the trial and sign informed consent.  Exclusion Criteria:  1. Those who have any broken skin or skin diseases on the part of the body which is the test site of the BLE thermometer, Including the underarms and the back of the body. 2. Those whose test site of the BLE thermometer are known to be contaminated by uncle arable body fluids, or lead to the inaccurate of the BLE thermometer. 3. Those who have restlessness or other conditions that make them unable to tolerate the temperature measurement procedure.