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How Does an Infrared Illuminator Work ?
In situations where events need to be monitored at night, B&W cameras are used with Infrared Illuminators. Infrared light is used because B&W CCD cameras have very good sensitivity in and near the infrared region. These are wavelengths longer than 700nm. The human eye can see up to 700nm wavelength, and anything above 700nm is invisible to the human eye. Most Infrared Illuminator come in 730nm, 830nm, and 950nm wavelengths. These Infrared Illuminators are invisible to the human eye, and that's why they're perfect for night monitoring. You will be able to see in total darkness with these infrared illuminators, without anyone knowing.
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