RH value from 10% to 60% cobalt free humidity indicator cards

Cobalt Free Humidity Indicator Card Brief
humidity indicator can easily measures relative humidity inside the sealed package to allow a quick and low cost inspection of the humidity level is safe or not. The blue indicator dot turms pink, means that RH in the package has or had been reached the RH value of that dot.

Cobalt Free Humidity Indicator Card Specification


Type
Colors changed from dry to wet
Spec.
Common HIC
HIC Cobalt-Free A (Green)
HIC Cobalt-Free B(Green)
HIC Cobalt & Halogen-Free(Green)

Blue to pink
One dot
Yellow to Green
Three dots
Brown to Azure
Four dots
Rose to Yellow
Six dots

Cobalt Free Humidity Indicator Card Usage Directions
a) The humidity indicator dots will change color as the relative humidity increases in the volume of air surrounding the indicator
b) The humidity indicator dots are reversible, and the changed dots will back to original color when the volume of the air is dried
c) The humidity indicator shows the most accurate value when the temperature is 23°C
d) Store humidity indicator cards in original sealed iron can. Immediately seal the can after every opening. The dot shows normal color before usage
e) Store in dry, cool area and keep them out of direct sunlight and away from water.

Cobalt Free Humidity Indicator Card Application:
Printed Circuit Board, electronic packaging, optical equipment,
Electronic equipment packaging, Electronic products, optical components, military products, metal products, Organic materials, synthetic material, protective packaging.
  
Cobalt Free Humidity Indicator Card Storage
a) Keep sealed and dry
b) Keep away from direct sunlight.

Cobalt Free Humidity Indicator Card standard packing
250PCS of humidity indicator cards to a can, 3000PCS to a carton