Class 4 Dual Indicator      

Class 4 Dual Indicator Strips are designed to be used in steam sterilizers. With one accurate calibration world wide it is a secure and safe monitoring system yet simple and easy to use. Monitors all 121˚C to 134˚C steam sterilization cycles. The water based and non-toxic chemical indicator in compliance with ISO 11140-1 will show a clear and accurate color change from blue to black after successful steam sterilization.