Humidity Indicator cards- are used in the electronics and semiconductor industry, to detect the presence of moisture in a sealed package.Providing you are using a moisture barrier bag that will be sealed with a sachet of silica gel and a moisture indicator card, you should not see any change in the colour of the spots on the card..The humidity indicator cards comply with JEDEC standard J-STD-033B. Many customers are now requesting Cobalt Dichloride Free humidity indicator cards, which we can supply.

We have 3 spot cards 5, 10, and 60%  relative humidity levels.Meets all relevant ECB/REACH labeling requirements. Usually packed 100 to 125 cards per tin.