Humidity Indicator Cards 10,20,30
- Indicate Humidity conditions in various types of packaging
- Allow instant visual verification of product integrity
- Often used in conjunction with a desiccant
- Approved for MIL-l-8835
- Low Cost
- Spots turn from Blue to Pink to indicate humidity levels
Humidity Indicator Cards 10,20,30 are designed to be moisture-sensitive and is embedded with the base chemical cobalt (III) chloride. The card will remain blue when humidity levels stay below the indicated RH level. When humidity levels rise above the indicated RH, the chemical has a reaction and turns to pink.