A Medical Thermometer measures a person’s Body Temperature. The temperature can be measured in various locations on the body that maintains a stable temperature. For example, an oral temperature is taken from a person who is capable of holding the Thermometer securely underneath the tongue. Another option is an axilla temperature or a temperature reading from the armpit. The axilla temperature is taken by holding the Thermometer tightly under the armpit. For an accurate reading, the person may need to hold the Thermometer for several minutes.