<；P>；PROBLEM TO BE SOLVED: To provide an ear insertion thermometer without causing trouble in hearing external sound. <；P>；SOLUTION: This ear insertion thermometer 1 includes: a speaker 25 for transmitting external sound on the back side of a temperature sensor 17 provided at the front end surface 8 of a temperature measuring body 2； and an internal space 15 formed by closing the front end by a front end vibrating plate 21, wherein the internal space 15 can cut off the transmission of heat generated from the speaker 25 for external sound transmission to the temperature sensor 17. This constitution can thus provide the ear insertion thermometer configured to eliminate the influence of the heat, which is generated in the speaker 25 for external sound transmission when transmitting the external sound to the external ear canal 11, from a detection result of the temperature sensor 17. <；P>；COPYRIGHT: (C)2010,JPO&INPIT
