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


This Humidity Indicator 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).

P/N 24877127681 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.

This card is used where space may be a problem. It is similar in design to the MS20003-2, except it is approximately 1/4 its size, and it is functionally equivalent to the MS20003-3 humidity indicator card, but has slightly different dimensional tolerances, making the 24877127681 ideal for small package applications. NSN # 6685-01-008-7563.

Additional information

Complies With


Standard Packaging

500 per pint

Previous Part Number


Rectangular Card RH

30% 40% 50%

Product Size

1.00" x 1.63"

Card Type



Blue to Pink

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

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