At present, the COVID -19 is still raging around the world, daily supplies such as forehead thermometer and disinfectant gel are still essential medical items in people's lives. As a real-time temperature monitoring tool, the forehead thermometer monitors the human body temperature and the surrounding environment temperature through NTC thermistor, and the combination of the two can better ensure the accuracy of the measurement data.

NTC thermistor is installed in the temperature collection position of the forehead thermometer, temperature monitoring is carried out at a certain position from the forehead, the obtained body temperature data is sent to the micro-control unit (MCU) through the signal circuit for information processing, then through the A/D conversion circuit, the final data is displayed on the display screen of the forehead thermometer, allowing users to obtain real-time monitoring data.

In addition, the somatosensory temperature of the human body will be affected by the surrounding environment and may deviate, such as low when cold and high when hot. Therefore, NTC thermistor in the forehead thermometer also monitors the ambient temperature, combined with the measured human body temperature, and performs data correction through the micro-control unit to ensure the accuracy of the measured data.

How to choose the NTC thermistor in the forehead thermometer? Human body temperature measurement requires high accuracy, IT series miniature insulated lead NTC thermistor researched, developed and produced by EXSENSE Electronics Technology Co., Ltd. can meet this requirement well, due to its accuracy can reach ±0.5%, which can assist the forehead thermometer to monitor body temperature more accurately. On the other hand, the head size of miniature insulated lead NTC thermistor is small, and the lead can be bent, which can save the arrangement position of the internal circuit structure of the forehead thermometer and provide a more abundant installation position for other electronic components. The IT series miniature insulated lead NTC thermistor of EXSENSE Electronics has a temperature measurement range of -40~105℃, which can efficiently help the forehead thermometer to measure the real-time temperature of the human body.