Desco Humidity Id 4 Spot 10-20-30-40%,100

Indicator range is from 10% - 40%
4 indicators per label. Container of 100 labels

Used in a variety of dry packaging applications, this card monitors humidity
levels across the widest range. Humidity Indicator Cards (HIC’s)
are printed with moisture sensitive spots which respond to various levels of
humidity with a visible colour change from blue to pink.
HIC's are placed inside vacuum sealed (dry packed) moisture barrier bags.
When the bag is opened, the card can be examined for proper dryness
inside the bag.

DES13870 TDS.