Plastic Remote Control 9 Keys For Mi Robot Vacuum / ECOVACS/ Viomi/ Proscenic Robot Vacuum
9 keys plastic remote control uses high level infrared sensor ,We know that light is also a kind of radiated electromagnetic wave. According to human experience, it generally refers to the range of light wave range visible to the naked eye from 400nm (violet light) to 700nm (red light) that can be perceived by human eyes.
As shown in the figure, we call the radiation outside the red light with a wavelength of 760nm to 1mm as infrared light. Infrared light is invisible to the naked eye, but we can still feel it through some special optical equipment.
Infrared is a kind of light invisible to human eyes, so it has all the characteristics of light. But at the same time, there is another kind of infrared ray that has a very significant thermal effect. All substances above absolute zero, i.e. - 273 ℃, can produce infrared rays