| 摘要 |
A moisture sensor is disclosed that includes a capsule, having a bottom portion and a top portion and an inlet for receiving fluid located at the top portion of the capsule, wherein the capsule is capable of containing at least one chemical that changes appearance in the fluid's presence. There is also a process for utilizing a moisture sensor that is disclosed. The process includes inserting at least one chemical that changes appearance when a fluid is present in a capsule, wherein the capsule has a bottom portion and a top portion and an inlet for receiving fluid located at the top portion of the capsule, and inserting the capsule into a ceiling where the bottom portion of the capsule is located below the ceiling. There can be a single chemical or substance that changes color in the presence of fluid or an upper layer and a lower layer of chemical where the upper layer goes from a solid to a liquid permeating the lower layer of chemical and changing overall appearance of the lower layer of chemical that is visible through the capsule as well as numerous chemical combinations.
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