Cobalt-free humidity indicator card, 10 % to 60 % RH, pack of 200 - Warmbier 3785.1060.CF

Whether a moisture-proof pack stayed tight during transport and storage cannot be judged from the outside. The indicator card is packed together with the desiccant and shows across the range 10 % to 60 % in six steps what climate prevails inside.

Advantages

• Cobalt-free version, it works without the cobalt(II) chloride used in classic indicator cards.
• Read off without instruments, the indicator spots change colour with the humidity.
• Six indicator values from 10 % to 60 % relative humidity in steps of 10 percentage points.
• Works together with the desiccant bags of the same supply range.
• Pack of 200 cards, sized for continuous series packing.

Application

The card is intended for Dry Shield packaging bags and other sealed moisture barrier packs holding moisture sensitive devices. On opening, the reading decides whether the assembly can go straight into production or has to be baked first. For checking very dry packs there is the version with an indicator value at 5 %.