Cobalt Free Humidity Indicator Card
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| * Range : 5% - 60% | |
| * Color change : Blue to Pink. | |
| * Meet SGS, Cocl2 Free, EU Environmental Regulations 67/548/CEE. | |
| * Easy to observe the large scale. | |
| * Suitable for PCB,SMD,LED,IC and Semiconductor Industry. | |
