UV Index Radiometric Probes With Working Temperature -40 Degree C+80 Degree C, LPUVI02 Series measures the global effective irradiance on a flat surface (Watt /m effective), according to the requirements of the WMO for the measurement of UV-index. The global irradiance is the sum of direct sun and of diffuse irradiance. In the ultraviolet spectral region, unlike what occurs in the portion of the visible light where the direct component is prevalent on the diffuse component, the light is strongly scattered in the atmosphere, and then the two components are equal; it is therefore of primary importance that the radiometer is able to accurately measure both components.

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