I. Does the infrared ear thermometer touch the skin?
The ear thermometer is a non-contact thermometer. Using far-infrared light to emit light signals, the temperature of the human body can be measured without touching the human body. Household ear thermometers are mostly used to monitor the body temperature of infants and young children, while medical ear thermometers are mostly used in areas where infectious diseases occur.
Generally speaking, infrared ear thermometers do not and do not need to touch the skin, so they will not cause cross-infection, and infrared thermometers used in public places are disinfected after use, usually after use. Alcohol cotton wipes for disinfection, you can use it with confidence.
Is the infrared ear thermometer accurate?
The infrared ear thermometer does not touch the skin, and the measurement speed is fast. Of course, the accuracy will be sacrificed , the national standard “Medical Infrared Thermometer Part 1: Ear Cavity Type” (GB/T 21417.1) stipulates that the error range of the ear thermometer is ±0.2°C within the range of 36-39°C, higher than 39°C and lower than 36°C The temperature is ±0.3°C; however, as long as the operation is strictly performed according to the instructions for use, it still has reference value, and the average or highest value can be taken after multiple measurements to monitor the body temperature. In addition, the factors that affect the accuracy of ear thermometers also include:
1. Price: There are different types of ear thermometers, and the prices vary greatly. Generally, medical ear thermometers The price of the ear thermometer is more expensive and the accuracy is higher, while the household ear thermometer has a certain error, which is mainly used for reference.
2. How to use: After using the ear thermometer, you need to straighten the ear canal, then insert the probe into the ear canal and aim at the eardrum. What is measured is the temperature of the ear canal skin and has no reference value.
3. Dirt in the ear: The earwax in the ear will affect the accuracy of the measurement, and if the earmuff or protective film on the probe gets dirty, it will also directly affects the measurement.
Generally speaking, although the accuracy of infrared ear thermometers is not as good as that of traditional mercury thermometers, it is better than the traditional mercury thermometers, but it is worse than the speed of measurement and easy to use. It can be used to monitor changes in body temperature. Use a mercury thermometer. If you suspect that the purchased infrared thermometer is inaccurate, you can go to the nearest legal metrology technical institution for calibration according to the existing standards in my country, such as “Infrared Thermometer Calibration Specification for Measuring Human Body Temperature” (JJF1107-2017) and other technical specifications. If the data error is large, the measurement repeatability is poor, and the performance is unstable, it is recommended to disable it.
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