4 Level Humidity Indicator Card
This Humidity Indicator Card was developed specifically for use in the electronics industry. It is ideal for use with the other components of the "Dry Pack" concept of packaging of surface mounted devices.
Dry pack is a three component process:
A barrier bag which seals moisture out.
A desiccant bag inside the barrier bag to adsorb moisture.
A humidity indicator card which indicates 10, 20, 30 and 40% RH.