China Humidity Indicator Cards
HIC is a kind of visible card. Each dot on the card points one special relative humidity degree. The dot color will change along with the RH degree from blue to pink (common cobalt-containing HIC) or brown to green (cobalt-free HIC). This changing helps decide the inside RH degree and confirm whether the desiccant should be replaced or not.
Established in 1998, Chunwang is well-known as one of the leading manufacturers and suppliers of china humidity indicator cards in China. During the past two years, we have introduced advanced equipment and technology into our factory. Please be free to buy our cheap products made in China.