3 In. Round Infrared Window, Maximum Operating Temperature Degrees F 500 Degrees F, Minimum Operating Temperature Degrees F -40 Degrees F, Optic Maximum Temperature 2,474 Degrees F, Viewing Aperture Area 5.79 sq in, Viewing Aperture Diameter 2.71 in, Viewing Aperture Height Not Applicable, Viewing Aperture Width Not Applicable, Window Thickness 0.07 in, Body Maximum Temperature 500 Degrees F, Includes Installation Instructions, IP Rating IP68, Gasket Maximum Temperature 170 Degrees F
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