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2026/09/04
2026/08/28
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The switch mode of infrared thermometer
Infrared thermometer is divided into two modes of forehead and object temperature. Here we take the Finicare IR2000 gun shaped infrared thermometer as an example to explain:
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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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