PURPOSE: To provide a thermometer capable of indicating the maximum temperature of a plurality of parts to be measured.

CONSTITUTION: In an indicator 21, a rotatable needle 22, three Bourdon tubes (only 18b is indicated), and a displacement quantity transfer part 23 are provided, respective Bourdon tubes are connected to three temperature-sensitive parts through conduits 18a, 19a, 20a. When respective temperature-sensitive parts are installed in a plurality of parts to be measured, respective bourdon tubes are displaced according to temperatures of respective parts to be measured, and therefore the needle 22 is rotated by the displacement quantity transfer part 23 through an angle corresponding to the maximum displacement quantity among these.