High intensity, non-reversing humidity indicator

A method for detecting humidity, comprising the steps of:

• a) providing a color indicator;
• b) covering said indicator with a layer of deliquescent material;
• c) providing spring means for moving said indicator;
• d) placing said indicator and said spring means in an enclosure;
• e) providing a means for viewing said indicator from the deliquescent material side;
• and
• f) providing an entry means for water to access the deliquescent material.

A device for monitoring humidity, comprising:

• a) a first layer having one side coated with a visual indicator material and the other side uncoated;
• b) a second layer comprising deliquescent material, covering and obscuring said coated side of said first layer, wherein said deliquescent material picks up moisture and dissolves itself in the moisture, becoming transparent and exposing said coated side of said first layer;
• c) a third layer having one side coated with a visual indicator material differing in color from that of said first layer, and the other side uncoated;
• d) a fourth layer comprising a different deliquescent material from that in said second layer, said fourth layer covering and obscuring said third layer, wherein said deliquescent material picks up moisture and dissolves itself in said moisture, becoming transparent and exposing said coated side of said third layer;
• e) a spring in contact at one end with said uncoated side of said first layer visual indicator and in contact at the other end with said uncoated side of said third layer visual indicator;
• f) a viewing means disposed on the opposite side of each deliquescent material layer from said first and third visual indicator layers;
• g) an enclosure containing said first, second, third and fourth layers, said spring and said viewing means;
• and
• h) an entrance to the enclosure,
• whereby when moisture enters and reacts with the deliquescent material, which liquefies and dissolves, said first and third visual indicator layers are propelled forward against said viewing means by the force of the spring.