Cobalt Free Humidity Indicator Card, 3 Dot, Pack of 10

Price 15.84 USD

EAN/UPC/ISBN Code 818947012273
Brand Humidity Indicator Cards
Manufacture Fairly Odd Treasures, LLC.

This indicator card has 3 indicating spots,30/40/50-percent rh * Humidity indicator cards - dots change color to reflect level of humidity * Cobalt chloride free cards