Fiber Optic Cable Lens-Rods: Type - Sensor Lens; Use With - Glass Fiber; Sensing Application - Long Range Opposed or Retroreflective; Material - Stainless Steel Housing; Temperature Rating - 480 deg C (900 deg F) max.; Size - Width - 28.6mm (1.12") Diameter; Size - Length - 58.4mm (2.30 in); Mounting - 7.9mm (5/16"-24) Thread