Use this card alongside desiccants to protect sensitive items such as electronics, circuit boards, optical components, instruments, cameras, and pharmaceuticals. By monitoring humidity, you can reduce the risk of , oxidation, mildew, and performance degradation. Specially developed for use in closed containers, sealed bags, and storage boxes, this humidity indicator card helps you monitor moisture levels without opening the package. It is suitable for long-term storage and transport where controlling humidity is critical. Featuring six separate indicator points, each corresponding to a different humidity level, the card gives you a more precise and detailed reading. The indicator dots change from blue to another color when the indicated humidity value is reached or exceeded, making detection simple and intuitive. This humidity indicator card is designed to visually monitor relative humidity levels ranging from 10% to 60%. It uses a clear color-change system, allowing you to quickly judge whether the environment inside a closed container is within the safe humidity range. The card requires no batteries or external power. Simply place it inside the container, and observe the color changes through a transparent window or upon opening. The large, clearly printed humidity values and color indicators quick and convenient reading for both professionals and home users., Weight: 0.1763698096 pounds, Manufacturer: Xnuiasqe