Infrared
Light just beyond the red end of the visible spectrum.
In massage guns and recovery devices, infrared heat penetrates a few millimeters into tissue. In cooking thermometers, infrared sensors read surface temperature without contact.
Light just beyond the red end of the visible spectrum.
In massage guns and recovery devices, infrared heat penetrates a few millimeters into tissue. In cooking thermometers, infrared sensors read surface temperature without contact.