The Attest Auto-reader 490 is a dual reader* designed to incubate and automatically read Attest Biological Indicator 1491** and Attest Biological Indicator 1492V** (for steam sterilization) or 1295** (for VH2O2) at 140°F (60°C) for a final fluorescent result at 24 minutes. Software version 4.2.7 or greater. Refer to the indications for use provided in the biological indicator Instructions for Use. The indications for use should align with the sterilization cycle to be monitored.