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Answer:

he basic and most economical IR thermometer has a measurement range from 0 to approximately 600° F, with an accuracy of ± 3.5° F (Extech® IR Thermometer). These simple yet effective tools are used by HVAC technicians to measure air temperature and motor surface temperature.

Explanation:
An infrared thermometer can measure temperatures ranging from as low as 100 degrees Fahrenheit to as high as 10,000 degrees Fahrenheit.