Drytech also manufactures a range of humidity indicator plugs, which conform to MIL-I-26860. The Illustration below depicts a standard 2100 Series aluminum indicator body. It may be fitted with a single 40% RH (relative humidity) indicating paper or be provided with a multi level RH indicator. These plugs are externally mounted, color change humidity indicators for determining relative humidity within rigid containers and equipment, and also for use in flexible moisture vapor-proof envelopes or bags.
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Item #

Thread A

Length B

Face C

Relative Humidity

1DT2100-1 N/A 3/4" straight pipe thread N/A 0.625 in N/A 1.375 across flats N/A 40 %
1DT2100-2 N/A 3/4" straight pipe thread N/A 0.625 in N/A 1.375 across flats N/A 20 %30 %40 %50 %
1DT2100-4 N/A 3/4" straight pipe thread N/A 0.625 in N/A 1.375 across flats N/A 10 %
1DT2100-5 N/A 3/4" straight pipe thread N/A 0.625 in N/A 1.375 across flats N/A 10 %20 %30 %40 %
1DT2100-6 N/A 3/4" straight pipe thread N/A 0.625 in N/A 1.375 across flats N/A 40 %
1DT2100-7 N/A 3/4" straight pipe thread N/A 0.950 in N/A 1.375 across flats N/A 20 %30 %40 %50 %
1DT2100-8 N/A 3/4" straight pipe thread N/A 0.625 in N/A 1.375 across flats N/A 10 %
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