1. Made of high quality medical paper board and ink.
2. Indicator turns black from yellow under 121ºC 15-20 minutes or 134ºC 3-5 minutes.
3. Storage: away from light, corrosive gas and in 15ºC-30ºC, 50% humidity.
- Measure the time, temperature, and presence of steam in steam sterilizers
- Distinctive color change (from purple to green) that is not reversible
- Plastic laminated