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Why the measurement distance of non-contact infrared thermometer is 3-5cm rather than 5-10cm?
When the infrared thermometer is measuring, with the distance of measurement, the measurement temperature will produce errors. 3-5cm is what the current technology can achieve.
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The main reason is that if you have obstruction, when you measure the forehead you're measuring the temperature of it, which makes the measurement inaccurate. But as the technology improves, the infrared thermometer will display a red screen that tells you to clean the obstructions.
The temperature error measured by the infrared thermometer is usually about 0.1-0.2℃.
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The solution for showing “Lo” words on Infrared Thermometer
The solution to the infrared thermometer showing "Lo" is to put it in an environment of 10-40°C, wait for 20-30 minutes, and then it can be used normally. Of course, there are very few cases of such environmental temperature inconsistencies. The original intention of the non-contact infrared thermometer was designed for indoor field measurement.
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Non-contact Infrared Thermometer
Non-contact infrared thermometer refers to: an infrared thermometer that does not touch the human body during measurement, which can avoid cross-infection of bacteria. When measuring, the non-contact infrared thermometer should be 3-5cm away from the measuring part(the middle of forehead)
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The contact infrared thermometer refers to : an infrared thermometer that needs to be in contact with the human body during measurement. Compared with other clinical thermometers, it measured by the contact infrared thermometer is relatively more accurate.
Here is the precautions:
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Home infrared thermometer functions switch
Operational conditions: 10℃-40℃. The screen will show “ LO” if the condition temperature is higher/lower than this temperature range, means it doesn’t work in normal condition temperature. Stay in a room(temperature is 10℃-40℃) for 20~30 minutes before taking a reading.
℃/℉ conversion: open the battery cover, use the toggle switch to change the ℃/℉.
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