BLUNT bird Infrared Digital Thermometer.
Anything above absolute zero radiates a certain amount of infrared
ray energy, the infrared energy value radiated by different kinds of
objects are different, but the infrared energy and wavelength can be
used to judge the surface temperature value of the object.
According to this principle, the temperature of the forehead can be
accurately measured duetoitsconstant temperature. And since the
infrared intensity radiated from the forehead at the same
temperature is different from that of other objects, such as water,
thereareatleasttwotemperaturemodels (body temperature and
body-temperature
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