Patent ID: 6972142

Claim:
A device comprising a card and a gauge for measuring atmospheric humidity, the card containing multiple layers having a top and bottom horizontal edge and opposite vertical side edges, the card having: a first layer of a thin, flexible, non-moisture absorbable material, printable upon a front face; a second layer of a first high tack heat or pressure sensitive adhesive on a back side of the first layer; a third layer of a moisture absorbable card stock affixed to a back side of the flexible non-moisture absorbable material of the first layer by the high tack heat or pressure sensitive adhesive of the second layer; a flexible magnetic sheet layer affixed by a second high tack heat or pressure sensitive adhesive to an upper back side of the third layer; and the gauge for measuring atmospheric humidity attached to the card by a perforated edge; whereby upon exposure to atmospheric humidity and upon disengaging the gauge from the perforated edge of the card and placing the gauge substantially perpendicular to the card, the gauge is capable of measuring the atmospheric humidity by measuring the degree of curl produced by the humidity in the multiple layers of the bottom edge of the card.