INDICATOR STRIP, STEAM (250/BX10BX/CS) STER-ALL® Performance Steam Indicator Strip For monitoring Steam sterilizers operating at 250-285 Degrees F (121-140 Degrees C). The indicator strip provides distinct color change when exposed to the steam sterilization process. Not Made with Natural Rubber Latex. Packaged: 250 8-Inch Strips or 500 4-Inch Strips Per Box, 10 Boxes Per Case