Humidity Indicator Plugs

Humidity indicator plugs & desiccator plugs provided by James Dawson can detect anywhere from 5 to 95 percent relative humidity and are available in a range of sizes and configurations to meet your specific requirements. Industry applications include: military, radar and night vision instrumentation, aerospace, metals, transportation systems, hydraulic systems and electronic equipment.

Humidity indicator plugs are designed to indicate the relative humidity level within a sealed container without users having to open it. With humidity indicator plugs, users can visually inspect the humidity inside a sealed container without opening it.

Desiccator plugs both indicate and control humidity levels within the container.

For more information about our humidity indicator & desiccator plugs contact our team or request a quote below.

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Features

BENEFITS

  • Cobalt Dichloride Free Humidity Indicator Cards are free of Cobalt-Dichloride (CoCl2), a chemical which has classification and labeling requirements under the European Chemical Agency (ECHA) REACH directives
  • Fully compliant with JEDEC standard J-STD-033 for color-change accuracy
  • Meets all relevant ECB/REACH labeling requirements
  • Typical applications include the dry packaging of semiconductor and electronic devices

COMPATIBILITY

Plugs are compatible with rigid-wall equipment and electrical housings, as well as most flexible barriers. Desiccator plugs are primarily designed for small containers, mechanical boxes or sealed instruments where space is limited. Plugs are adaptable to virtually all applications for Method II packaging of Mil-Std-2073-1D Method 50 and AS26860 aerospace specifications. Compact plugs are designed to be leak-resistant and temperature-proof, and to withstand shock and vibration.

Specs

Available configurations

Humidity Indicator Plugs

Label and Application Material Finish Finish Thread Size Max. Internal Pressure Meets Specs:
2156, 2161, 2157 HI Plugs
2156: For installation in flexible barriers, rigid containers or threaded boss;
2157: For installation in containers with thick walls;
2161: For installations where space is limited.
Aluminum QQ-A-225/5 or /6 Clear anodized ¾” – 14 Modified straight pipe 10 PSI Mil-Std-2073- 1D Method 50, AS262860
2155 HI Plugs
For installation in rigid barriers.
Brass QQ-B-626 Zinc plate ¾” – 14 Modified straight pipe 10 PSI Mil-Std-2073- 1D Method 50, AS262860
R2156 HI Plugs
For installation in flexible barriers.
Aluminum QQ-A-225/5 or /6 Clear anodized ¾” – 14 Modified straight pipe 10 PSI Mil-Std-2073- 1D Method 50, AS262860
2175 HI Plug
For installation in rigid containers or flexible barriers.
Aluminum QQ-A-225/5 or /6 Clear anodized 1.4375” – 18 UNEF 10 PSI Mil-Std-2073- 1D Method 50, AS262860
2175R HI Plug
For installation in rigid barriers.
Aluminum QQ-A-225/5 or /6 Clear anodized 1.4375” – 18 UNEF 10 PSI Mil-Std-2073- 1D Method 50, AS262860
SK412, SK413 HI Plugs
Designed for installation in the threaded boss of shipping containers, storage cabinets and equipment housings that require a smaller indicator plug.
Brass QQ-B-626 Zinc plate ½” – 20 UNEF 10 PSI N/A
2184 HI Plug
For high pressure applications
Stainless steel Electroless nickel ¾” – 14 Tapered straight pipe 3000 PSI N/A

Desiccator Plugs

Label and Application Material Finish Finish Thread Size Max. Internal Pressure Meets Specs:
2156-DA1, 2156-DA2 Desiccator Plug: Designed primarily for use in small containers or sealed instruments. Desiccant is refillable. Aluminum
QQ-A-225/5 or /6
Clear anodized ¾” – 14 Modified straight pipe 10 PSI N/A
680000 Desiccator Plug: Effective for small containers up to 250 cubic inches in volume. Ideal for use in containers or equipment cabinets of one gallon or less. Contains approx. 3 grams of silica gel. Aluminum QQ-A-225/5 or /6 Black anodized 18 mm – 1.5 N/A Mil-Std-2073-1D
Method 50
680300 Desiccator Plug: Initially designed for missile container protection. Effective for small containers up to 500 cubic inches in volume. Contains approx. 7 grams of silica gel. Aluminum QQ-A-225/5 or /6 Black anodized 1” – 14 UNS N/A Mil-Std-2073-1D
Method 50
2156/2161 PDA Porous Desiccator Attachment: Porous polyethylene tube filled with desiccant. Aluminum QQ-A-225/5 or /6 Clear anodized ¾” – 14 Straight pipe N/A N/A
2175 PDA Porous Desiccator Attachment: Porous polyethylene tube filled with desiccant. Aluminum QQ-A-225/5 or /6 Clear anodized 1.4375”-18 UNEF N/A N/A
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