Use Integra Humidity Indicator Cards to measure 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% to 60%. Simply place a single card in the area to be measured and wait for the indicator dots to turn blue in order to determine the exact humidity levels within that contained space.
Each carton contains 36 packs of 10 Humidity Indicator Cards
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