This thermometer (1) is provided with: a probe (2) to be fitted to the ear (100) having an infrared sensor (10) to measure the temperature of an eardrum (105) of an ear (100) of a patient in a non-contact manner； a signal cable (20) connected to the infrared sensor (10), and drawn out of the probe (2)； a holding portion (45) provided in the probe (2) to be held in a space inside of the tragus (108) of the ear (100) when the probe (2) is inserted therein； and a groove portion (40) provided in the holding portion (45) to hold the signal cable (20) in a curved state and to allow a curved portion (20R) of the signal cable (20) to fit into the cavum conchae (109) of the ear (100).本發明係一種體溫計(1)，其係具備探測器(2)、訊號電纜(20)、把持部(45)、以及溝槽部分(40)，該探測器(2)，係具有用來以非接觸方式測定患者之耳(100)的鼓膜(105)之溫度的紅外線感測器(10)，且被安裝在耳(100)；該訊號電纜(20)，係連接於紅外線感測器(10)且從探測器(2)導出；該把持部(45)，係設置於探測器(2)，當將探測器(2)放入耳(100)之耳屏(108)的內側時用以進行把持；該溝槽部分(40)，係設置於把持部(45)，讓訊號電纜(20)保持彎曲的狀態，並讓訊號電纜(20)的彎曲部(20R)沿著耳(100)之耳甲腔部(109)內配置。
