Integra Humidity Indicators
Integra Boost Humidity Indicator Cards have a 10% – 60% relative humidity range and are a simple, fast and effective way to visually verify the integrity of your product. Excellent for home/ hobby use, as well as for a business to boost their customers’ confidence in your product line.
These are the perfect size for putting in a glass jar or other storage device.
10 x Indicator cards.