Integra Boost Humidity Indicating Cards 10% to 60% - Qty 10 per pack, Master Case of 36 packs - 360 Total Qty.Overview
Keep track of the humidity levels in your enclosed space with our Humidity Indicating Cards. Each pack contains 10 cards, with each card reading relative humidity (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. Our humidity cards are an essential tool for growers, hobbyists, and anyone who needs to maintain precise levels of humidity in their environment.