6 Level Humidity Indicator Card
This color-change Humidity Indicator Card was designed for use with activated desiccant in packaging by the Atomic Energy Commission. This Humidity Indicator Card complies with MIL-I-8835. A warning arrow points to 30% relative humidity (RH), which if pink, indicates a desiccant failure.
The card ranges from 10% RH to 60% RH giving one of the largest ranges available and good accuracy.