| 摘要 |
An ear thermometer has a main body and a probe projected from the main body. The ear thermometer has a casing, a sensor module and a tube. The casing has an opening formed in a front side thereof. The sensor module is installed inside the casing, and has a diameter of between 3.2 mm and 5.6 mm. The tube is installed between the casing and the sensor module for positioning the sensor module inside the casing. The diameter of the probe is reduced for insertion into an external ear canal of a human, and especially that of a baby, to measure true temperature.
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