5 1⁄2" Probe Length Thermocouples

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Thermocouple Type

System of Measurement

Probe Diameter

Probe Length

Mount Type

Probe Connection Pipe Size

For Use With

Probe Connection Thread Type

NPT

Thermocouple Sensor Connection

Pipe Size

Probe Material

Maximum Temperature

1,000° F to 1,999.9° F

Material

Aluminum

Magnesium Oxide

Stainless Steel

Accuracy @ Temperature

±0.75% Above 240° F

±0.75% Above 533° F

±1.8° F Between 32° F to 240° F

±4° F Between 32° F to 533° F

Not Rated Below 32° F

Fitting Material

304 Stainless Steel

Electrical Connection

Environment

Sensor Type

Component

Overall Length

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

RoHS

Compliant

REACH

Compliant

For Maximum Wire Gauge

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6 Products

Threaded Thermocouple Probes for Liquids and Gases

For easy installation in thermowells, tanks, pipes, and other closed vessels, these probes have a male NPT fitting. They’re stainless steel, so they won’t corrode as they measure the temperature of liquids and gases. The stainless steel acts as a shield if they’re hit or bumped, so they’re also safe to use with solids, such as molds and dies. The fitting is welded on, so you can’t adjust the probe’s length.

Pick the thermocouple type that best covers the temperature range you expect your liquid or gas to be in. You should also make sure the thermocouple type you choose is compatible with the device you plan to connect it to. These probes are often used with temperature controllers, thermometers, and other temperature-reading devices.

These probes are manufactured to conform to ASTM E230 for accuracy. Accuracy is how far off the reported value is from the actual temperature.

Probe with NEMA 4 Screw Terminal

Image of Product. Side2 orientation. Contains Annotated. Thermocouples. Threaded Thermocouple Probes for Liquids and Gases , Screw-Terminal Thermocouple Connection, Probes.

Probes with a screw terminal connection have a cap that you take off to wire them to your device. Rated NEMA 4, the head seals out dust and water from washdowns.

Insulated—Insulated probes bend up to 90° to fit in tight spaces, thanks to a layer of magnesium oxide inside that protects the wiring from kinking.

	Probe									Conduit Connection
	Lg.	Dia.	Response Time	Max. Temp., ° F	Accuracy @ Temperature	Overall Lg.	Probe Material	Insulation	Sensor Type	Pipe Size	Thread Type	Gender		Each
Type J Thermocouple







				1/2 NPT Male Probe Connection

				5 1/2"	3/16"	Not Rated	1,400	±4° F Between 32° F to 533° F ±0.75% Above 533° F	10 1/4"	316 Stainless Steel	Insulated	Grounded	3/4	NPT	Female	3872K36	0000000


				5 1/2"	1/4"	Not Rated	1,400	±4° F Between 32° F to 533° F ±0.75% Above 533° F	10 1/4"	316 Stainless Steel	Insulated	Grounded	3/4	NPT	Female	3872K37	000000


				Type K Thermocouple







								1/2 NPT Male Probe Connection

								5 1/2"	3/16"	Not Rated	1,650	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	10 1/4"	316 Stainless Steel	Insulated	Grounded	3/4	NPT	Female	3872K38	000000


								5 1/2"	1/4"	Not Rated	1,650	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	10 1/4"	316 Stainless Steel	Insulated	Grounded	3/4	NPT	Female	3872K39	000000


								Type T Thermocouple







												1/2 NPT Male Probe Connection

												5 1/2"	3/16"	Not Rated	700	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	10 1/4"	316 Stainless Steel	Insulated	Grounded	3/4	NPT	Female	3872K41	000000


												5 1/2"	1/4"	Not Rated	700	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	10 1/4"	316 Stainless Steel	Insulated	Grounded	3/4	NPT	Female	3872K42	000000