WiseHIC® Cobalt Dichloride Humidity Indicator Card (blue to pink)
WiseHIC® Cobalt Dichloride Humidity Indicator Card (blue to pink) is an accurate and easy to use humidity testing solution. The indicating dots on the card make it simple to see the relative humidity inside the packaging clearly. Not only is it simple but it is also a low-cost solution. Definitely an important tool for any moisture proof packaging. To meet different customer requirements, WiseSorbent has developed three categories of humidity indicators: the cobalt chloride series, non-cobalt chloride series and copper series.