An infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation, sometimes called black-body radiation, emitted by the object being measured. They are sometimes called laser thermometers as a laser is used to help aim the thermometer, or non-contact thermometers or temperature guns, to describe the device's ability to measure temperature from a distance.
An infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation, sometimes called black-body radiation, emitted by the object being measured. They are sometimes called laser thermometers as a laser is used to help aim the thermometer, or non-contact thermometers or temperature guns, to describe the device's ability to measure temperature from a distance.
Source: Wikipedia "Infrared thermometer" · CC BY-SA 4.0
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