Dry-Packs Humidity Indicator Card - 3 Dot 30%/40%/50% - MS20003-2

50 Cards Per Pack: If you need 50 cards, order quantity 1. If you need 200 cards, order quantity 4. This is a Color-Change Reversible Humidity Indicator Card that meets the requirements of Military Specifications MIL-1-8335 and MIL-P-116 Method II. This Indicator Card has 3 indicating spots 30/40/50% RH, they change from Blue dry to Pink humid. A great tool to assist you in keeping your valuables protected!

Country of Origin: China Material: Paper Dimension: 1" x 2" x 4" No assembly required