Do not have COCL2,Do not have Halogen.
Color Changing Humidity Indicator Cards
As the humidity increases the chemically impregnated spots change from a blue color (DRY) to a Pink Color(HUMID).
Humidity Range: 10-60% RH
Meets the requirements of MIL-1-8335 and MIL-P-116 Method II

Technical Details

Product Details

Package Dimensions
Width : 2.95 inch
Height : 0.47 inch
Length : 6.3 inch

Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B06ZXRKZFQ