I don't understand your question. Thermometers are inanimate objects and thus have no body temperature
What kind of thermometer you use to measure the body temperature
a fever thermometer, is a thermometer that you can use to check your body temperature.
A thermometer is used to meusure your body temperature either it can be clinical thermometer or digital thermometer.
Clinical thermometer
It is true that thermometers always registers its own temperature.When thermometers are in contact with a respective body heat is exchanged between the thermometer and the body.After some time they are in equilibrium state.As both of their temperature are now the same, temperature of thermometer is registered equal to that of the body as a result.
body temperature.
body temperature.
Body temperature can also be measured with a thermometer at the armpit i believe.
fever thermometer is used by the doctors and they are adjusted to body temperature whereas lab thermometer is adjusted to liquid temperature
thermometer
A temporal artery thermometer is a thermometer that gets a persons body temperature from their temple.
oral thermometer rectal thermometer aural thermometer feeling the forehead with your hand