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Integra™ Boost™ humidity indicating cards are an inexpensive way to quantify relative humidity levels accurately.
Use our humidity indicator cards to determine the humidity levels (or relative humidity, “RH”) in a contained environment.
Each pack contains 10 humidity-indicator cards, and each card will read RH from 10%-60%. Simply place a single card in the area to be read and wait for the indicator dots to turn bright blue in order to determine the humidity levels in that area.