The 51015HIC125 is a humidity indicator card designed to monitor moisture levels inside dry-packed barrier bags through visible color changes. The card features moisture-sensitive spots made of blotting paper impregnated with cobaltous chloride, which respond to relative humidity levels of 5%, 10%, and 15% by changing color from blue to pink. The card measures 2" × 3" and is supplied in standard packaging of 125 pieces per can. When the sealed bag is opened, the card can be visually examined to verify proper dryness conditions inside the bag, with pink coloration indicating the need to bake units or change desiccant. This product is manufactured in the United States and complies with RoHS 2, REACH, and Conflict Minerals regulations, making it suitable for static-sensitive component storage and moisture-critical applications.