The application of Humidity Indicator Card

Humidity Indicator Card (also known as HIC, Humidity Indicator, Humidity Indicator Paper) is a moisture sensitive paper that it will change color when the indicated relative humidity is exceeded, you can know the humidity from the card directly and avoid the humidity damaging your product.

Humidity Indicator Card can be used in printed circuit board, LED, semiconductor, various aeronautic and military equipment, etc. It is an inexpensive way to quantify relative humidity levels in sealed packaging.