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30-40-50% Reversible Humidity Indicator Card - MIL-I-8835 Qualified


P/N 24878527694 is AGM's most popular 30-40-50% Reversible Humidity Indicator Card and can be used in almost any industry. This card is a color-change indicator and is reversible as required by Military Specification MIL-I-8835. As the humidity increases, the chemically impregnated spots change from a blue color (DRY), through a lavender, to a pink color (HUMID). As the humidity decreases, the spots change from a pink color (HUMID), through a lavender, back to a blue color (DRY).

Each of these cards is accurate to ±5% relative humidity (RH) at 75°F (24°C). Other humidity combinations are available by special order.

NOTE: This card has been impregnated with a chemical that may cause corrosion of some metals; therefore, AGM recommends that the card not be placed in direct contact with metal objects.

The current Military Standard, MIL-I-8835, dated 4 June 63, is approved by all Governmental Agencies, the Department of Defense and NATO for use in Method II packaging. P/N 24878527694 card meets this standard and is fully reversible. It is functionally equivalent to the MS20003-2 humidity indicator card, but has slightly different dimensional tolerances.

Additional information

Complies With


Previous Part Number


Product Size

2.00" x 3.00"

Standard Packaging

125 per pint

Rectangular Card RH

30% 40% 50%


Blue to Pink

Card Type


AGM Container Controls, Inc.
3526 E. Fort Lowell Rd.
Tucson, AZ 85716

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