Moisture-Indicating Plugs

	Thread Size Thread Size

3/4"

1 7/16"-18

	Thread Type Thread Type

NPSM

UNEF

	Indicator Style Indicator Style

Pie

Spot

	Minimum Dew Point Minimum Dew Point

-22° F

-30° C

	For Hole Diameter For Hole Diameter

1.05"

1 27/64"

1.45"

	Scale Scale

Celsius

Fahrenheit

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Humidity Points Humidity Points

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Maximum Indoor Temperature Maximum Indoor Temperature

60° C

140° F

	Maximum Dew Point Maximum Dew Point

20° C

68° F

	Specifications Met Specifications Met

MIL-I-8835

SAE AS26860 Type 2

	Width Width

1 3/8"

1 7/8"

	Environment Environment

Dusty

Submersible

	Minimum Indoor Temperature Minimum Indoor Temperature

-4° F

-20° C

	Dew Point Accuracy Dew Point Accuracy

±3.6° F

±2° C

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7 Products

Humidity-Indicating Plugs

Plug

40% Spot-Style Indicator

20%, 30%, 40% Pie-Style Indicator

20%, 30%, 40%, 50% Pie-Style Indicator

30%, 40%, 50%. 60% Pie-Style Indicator

20%, 30%, 40%, 50% Spot-Style Indicator

Monitor humidity in sealed containers without opening them, protecting the inside from contamination. These plugs are often used on plastic bags, storage containers, and electrical housings. Consisting of a mounting nut and two gaskets for a tight seal, these plugs install through a hole in a flexible barrier. Remove one gasket and reverse the nut to install plugs in a rigid container. Watch the indicator disc through the nut’s viewing window—it will change color as humidity rises and falls. Made of anodized aluminum, these plugs resist corrosion and are lightweight. They meet military and SAE standards for humidity indicators.

For technical drawings and 3-D models, click on a part number.

					Thread
Humidity Points	Accuracy	Height	Width	For Hole Diameter	Type	Size	Indicator Use	Specifications Met		Each
Anodized Aluminum
Pie-Style Indicator
20%, 30%, 40%	±5%	5/8"	1 3/8"	1.05"	NPSM	3/4"	Reversible	MIL-I-8835; SAE AS26860 Type 2	0000000	000000
20%, 30%, 40%, 50%	±5%	5/8"	1 3/8"	1.05"	NPSM	3/4"	Reversible	MIL-I-8835; SAE AS26860 Type 2	0000000	00000
30%, 40%, 50%, 60%	±5%	5/8"	1 3/8"	1.05"	NPSM	3/4"	Reversible	MIL-I-8835; SAE AS26860 Type 2	0000000	00000
Spot-Style Indicator
20%, 30%, 40%, 50%	±5%	5/8"	1 3/8"	1.05"	NPSM	3/4"	Reversible	MIL-I-8835; SAE AS26860 Type 2	0000000	00000
20%, 30%, 40%, 50%	±5%	5/8"	1 7/8"	1.45"	UNEF	1 7/16"-18	Reversible	MIL-I-8835; SAE AS26860 Type 2	0000000	00000
40%	±5%	5/8"	1 3/8"	1.05"	NPSM	3/4"	Reversible	MIL-I-8835; SAE AS26860 Type 2	0000000	00000

Through-Wall Humidity and Temperature Meters

Mount these meters through the wall of a sealed container or package to monitor relative humidity, temperature, and dew points without exposing the contents to dust and water. Check the readings on an easy-to-read LED display. Made of aluminum, the housing is lightweight and resists corrosion.

For technical drawings and 3-D models, click on a part number.

Relative Humidity		Temperature		Dew Point
Range	Accuracy	Indoor Range	Accuracy	Range	Accuracy	Dp.	Dia.	For Hole Dia.	For Max. Wall Thick.	Batteries Included	Fasteners Included	Environmental Rating		Each
5 to 80%	±3%	-4° to 140° F/-20° to 60° C	±1° F/±0.5° C	-22° to 68° F/-30° to 20° C	±3.6° F/±2° C	1 1/4"	2 1/2"	1 27/64"	11/32"	Yes	Yes	IP67	0000000	0000000