Reversible color-change humidity indicator plug discs are serve as visual indicators that a given humidity level specified on the disc has been exceeded. As noted, these are for use with our humidity indicator plugs, but they can be used on their own, if desired. These chemically impregnated discs are made from blotting paper, and are manufactured in accordance with MIL-I-8835. Humidity Indicator discs may be ordered pre-installed as a complete Humidity Indicator assembly (see our humidity indicator plugs here) or may be installed in any SAE AS26860 type plug.
