An electronic thermometer uses a temperature sensor to output an electrical signal, either directly or by converting the current signal (analog signal) into a digital signal that can be recognized by internal integrated circuitry. The temperature is then displayed digitally on a screen (such as an LCD, digital tube, or LED matrix), and can record and read the highest temperature value measured.
The core component of an electronic thermometer is the NTC temperature sensor. The sensor's resolution can reach ±0.01℃, its accuracy ±0.02℃, its response time <2.8 seconds, and its annual resistance drift ≤0.1% (equivalent to less than 0.025℃).
The advantages of electronic thermometers include high accuracy (error within the nationally stipulated range of ±0.1-±0.2℃), meeting clinical diagnostic requirements, and ease of reading and portability. Furthermore, electronic thermometers offer advantages such as rapid measurement, avoidance of mercury leakage risks, and easy data recording.
