Humidity display card is used to indicate relative humidity inside the package. But will also determine the effectiveness of the desiccant inside the package to maintain low humidity inside the package to prevent the product from moisture. Desiccant humidity display card with the minerals and anti-static shielding bag, widely used in the packaging of semiconductor packages and electronic products. 

 Card companies have made the field of senior technical and humidity can produce different according to your request humidity card!