The humidity indicator card measures the level of relative humidity that packaged contents are exposed to. The three indicator spots measure humidity in percentages of 30, 40, and 50% and will change from brown to yellow to indicate humidity levels. It comes in a can of 125.
The humidity indicator card measures the level of relative humidity that packaged contents are exposed to. The three indicator spots measure humidity in percentages of 30, 40, and 50% and will change from brown to yellow to indicate humidity levels. It comes in a can of 125.
