Specifications:
1.Name: humidity indicator cards
2.Convinience
3.Reversible
4.Lead-free RoHS
5.Cobalt free

Features:
1.Humidity indicator card is a quick, a low cost method.
2.It is printed with moisture sensitive spots which respond to various levels of humidity with a visible color change from blue to pink.
3.Help to provide visual proof of the relative humidity level within a given environment.
4.Easy to monitor the interior humidity conditions of the package.
5.Easy to see if your desiccant is working well or need to be replaced inside a sealed package or closed space.
6.Available in numerous configurations.
7.Cards are constantly indicate relative humidity as low as 10% and as high as 60%, depending on the application and need.

Application:
Electronics
Instruments
Semiconductors
Sensitive components
Organic materials
Munitions
Metal materials
Composite materials
Warehousing and storage vacuum packaging of various products.

Join-you® humidity indicator card is a kind of accurate and convenient humidity testing means, through the color change of the indicting dots on the card.It is easy to clearly observe the relative humidity inside the current packaging with features of simple in operation and low in cost, making it an important auxiliary tool for moisture proof packaging.

 After years of study and practical application, Join-you® has developed various humidity indicators card in two major categories of cobalt series and cobalt free series, which can meet the needs of humidity indication on different occasions and under different environment.