Introduction
Humidity Indicator Card (HIC) is a kind of visible card with several dots that can change the color from "Dry" to "Wet", each dot on the card indicates one specified relative humidity degree.
The dot color will change along with the RH degree from blue to pink (common cobalt-containing HIC) or brown to azure (cobalt-free HIC). It can help the users to know the inside humidity condition and decide whether the desiccant should be replaced or not.
It's so easy to monitor the interior humidity conditions of the package that can prevent the goods from moisture damage

Feature
The speed of the color change is adjustable 
The commonly-used types are 5-10-60%, 30-40-50%, 10-60% and it's available to be customized.
The color change is reversible that the color will come back to the original one with the decrease of the humidity

Application
a) Semiconductor packing etc
b) Electronics components, PCB board
c) Optical components, synthetic material, organic material

1: Established in 2002 with 14 years' experiences in this industry.
2:Combines R&D, production and sale together.
3: Owns advanced mechanized production line 
4: Product range: kinds of desiccants, humidity indicator card, Aluminum foil bag and other packing material.