What is a byproduct of a fire that is detected by UV/IR detectors?

UV/IR detectors are designed to identify the presence of flames by sensing specific wavelengths of ultraviolet (UV) and infrared (IR) radiation emitted during combustion. The radiant energy produced by a fire is a key characteristic of flames, as it encompasses the light and heat that are generated when fuel burns.

When a fire occurs, it releases energy in the form of UV light and IR radiation, both of which can be detected by these specialized sensors. This allows for the rapid detection of flames, enabling quick action to be taken in case of a fire event.

While smoke, heat, and carbon dioxide are also associated with fire, they are not the primary byproducts that UV/IR detectors are specifically designed to sense. Smoke consists of particulate matter and other gases produced during combustion, heat can be detected through other means, and carbon dioxide is a result of the chemical reaction but does not provide the same immediate indication of a flame's presence as radiant energy does.