As a more precise alternative to indicating silica gel bags, we supply a range of Humidity Indicator Cards (HICs). They change-colour at specific Relative Humidity within a customer’s sealed product pack, and are particularly useful for customers who sell diagnostic test kits; where a demonstration of the test kit’s efficacy is required upon pack-opening.

They are also used by manufacturers of pharmaceutical chemicals, and are included in bulk containers of moisture-sensitive chemicals, where they are used as an indicator of the container’s integrity.

Simply speaking, if you see that HIC has changed colour, then you know that the packed-product is probably affected, and needs checking.

1-Spot (with a single 8% indicator disc)

6-Spot (with indictor discs for: 10%, 20%, 30%, 40%, 50% and 60% RH on a single card)

Benefits of Baltimore HICs:

Low-Cost …These are the most cost-effective humidity indicators on the market
Low Weight …so there is little or no need to consider additional pack size or pack weight
Simple …The colour change is very clear and easily understood by operatives and customers alike
Quality …as an ISO:9001 accredited company, you are assured of world-class products
Safe …Our easy to read blue-to-pink indicator cards are all 100% cobalt-free

Desiccant solutions & barrier foil protective packaging

Call +44 (0) 1628 531900 or email to solve your humidity & moisture control problems.

Consultancy on packaging stability | Barrier foil protective packaging |Silica gel & molecular sieve desiccants | Desiccant dispenser | 70-years’ combined industry experience | ISO 9001:2015 accredited