Patent ID: 8912500

Claim:
A UV radiation detector, comprising: a housing having a connector end and a primary window, wherein said primary window allows for the passage of UV radiation and wherein said connector end is comprised of a male threaded end; a UV radiation sensor within said housing to measure UV radiation that passes through said primary window; a secondary window removably attached to said housing for allowing replacement of said secondary window, wherein said secondary window allows for the passage of UV radiation, wherein said secondary window is adjacent to and protects an outer surface of said primary window from contamination; and a retainer member having an outer opening to allow for passage of UV radiation, wherein said retainer member is removably attached to said housing to removably retain said secondary window adjacent to said primary window, wherein said retainer member includes a female threaded end threadably connected to said male threaded end and an overlapping portion, wherein said overlapping portion is opposite of said female threaded end, wherein said overlapping portion extends inwardly to said outer opening thereby defining a perimeter of said outer opening, wherein said outer opening is smaller than said secondary window, wherein said secondary window is in contact with an interior surface of said overlapping portion and wherein said overlapping portion retains said secondary window adjacent to an outer surface of said primary window.