An in-office Biological Indicator (BI) system ideal for monitoring liquid cycles as well as standard steam sterilization cycles. This system requires no crushing or activation and gives clear, easy to interpret results. Purple to yellow color change or visible turbidity of a processed ampule indicates sterilizer failure. Final results are known after 48 hours incubation in any compatible dry block incubator operating at 55-60ºC. For users convenience, SPSmedical offers a calibrated 60ºC dry block incubator that comes with 15 wells and a lifetime warranty. For new customers, a starter kit is available with a dry block incubator, record notebook and a box of 20 BIs.