The normal temperature range of the wrist temperature is 36-37℃, but generally speaking, we use the body temperature gun or forehead temperature gun, it is through the principle of infrared thermography, a determination of our body temperature. This body temperature often only represents the surface temperature, which is particularly susceptible to environmental influences, such as the flow of air or the clothing we are wearing. If we are covered when taking the temperature, the temperature will not be measured correctly. Therefore, it is necessary to repeat the test several times before the final temperature is relatively accurate. Of course, the infrared temperature range is the same as our normal body temperature, which should be between 36-37℃ to be considered normal.