This hand held laboratory and industrial grade instrument is used for measuring the UV radiation hazard to eyes and skin.

The model 6D is a valuable safety tool for any industry that involves worker exposure to UV radiation. It is sensitive to ultraviolet radiation specified as hazardous in standards published by the American Conference of Governmental Industrial Hygienists. Those standards state that the total UV exposure in an eight-hour period should not exceed 3 millijoules per square centimeter at 270nm. Other wavelengths have hazardous potential related to that of 270nm by the Spectral Weighting Function. The Safety Meter monitors the integrated effect of all ultraviolet wavelengths from the light source.