304 Stainless Steel Thermocouples

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Thermocouple Type

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Probe Length

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Probe Diameter

Thermocouple Sensor Connection

Flat-Pin Mini Thermocouple Connector

Round-Pin Thermocouple Connector

For Use With

Electrical Connection

Flat-Pin Mini Thermocouple Connector

Round-Pin Thermocouple Connector

Spade Terminal

Wire Leads

Probe Connection Pipe Size

Maximum Temperature

1,000° F to 1,999.9° F

Sensor Type

Component

Pipe Size

Probe Material

17-4 PH Stainless Steel

300 Series Stainless Steel

Cable Material

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 400° F

±4° F Between 32° F to 500° F

±4° F Between 32° F to 533° F

Not Rated Below 32° F

Probe Connection Thread Type

NPT

Maximum Cable Temperature

Insulation

Material

Wire Lead Length

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

RoHS

REACH

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

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106 Products

Bayonet-Mount Thermocouple Probes for Surfaces

Quick to install and remove, these probes won’t shake loose from a surface even in high-vibration environments. Twist their bayonet fitting into an adapter mounted on your surface to hold them in place. Their tip is exposed, so they can respond to rapid changes in surface temperatures but can’t be used in liquids. For accurate readings, move the fitting along the length of the cable until the tip of the probe is pressing firmly against the surface you’re measuring. To prevent wear, corrosion, and abrasion, an armored stainless steel cable protects the wiring that connects these probes to your temperature-monitoring device. This makes these probes a good choice for humid and harsh environments.

Pick the thermocouple type that best covers the temperature range you expect your surface to be. 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 and thermometers.

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

Probes


	Flat-Pin Mini Connector	Round Pin Connector	Spade Terminals

Spade Terminal Thermocouple Connection—Choose a probe with spade or ring terminals if you plan to connect to a terminal block. For installation, note that the red wire lead is negative.

	Probe							Cable		Wire Lead
	Lg.	Dia.	Response Time, sec.	Max. Temp., ° F	Accuracy @ Temperature	Probe Material	Sensor Type	Material	Max. Temp., ° F	Lg.	AWG		4 ft. Long Cable	6 ft. Long Cable	8 ft. Long Cable	10 ft. Long Cable
Type J—Flat-Pin Mini Thermocouple Connector



		1/2"	3/16"	2.5	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Grounded	Stainless Steel	900	—	—	3860K31	000000	—	000000	—


		Type J—Round-Pin Thermocouple Connector



				1/2"	3/16"	2.5	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Grounded	Stainless Steel	900	—	—	3860K32	00000	—	00000	—


				Type J—Spade Terminals



						1/2"	3/16"	Not Rated	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Ungrounded	Stainless Steel	900	3"	20	3860K33	00000	000000	00000	000000


						1/2"	3/16"	2.5	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Grounded	Stainless Steel	900	3"	20	3860K34	00000	00000	00000	00000


						Type K—Flat-Pin Mini Thermocouple Connector



								1/2"	3/16"	2.5	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Grounded	Stainless Steel	900	—	—	3860K35	00000	—	00000	—


								Type K—Round-Pin Thermocouple Connector



										1/2"	3/16"	2.5	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Grounded	Stainless Steel	900	—	—	3860K36	00000	—	00000	—


										Type K—Spade Terminals



												1/2"	3/16"	Not Rated	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Ungrounded	Stainless Steel	900	3"	20	3860K37	00000	00000	—	00000


												1/2"	3/16"	2.5	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Grounded	Stainless Steel	900	3"	20	3860K38	00000	00000	00000	00000

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 Cable with Wire Leads

Image of Product. Front orientation. Contains Annotated. Thermocouples. Threaded Thermocouple Probes for Liquids and Gases , Probe with Cable with Wire Leads.

Probes with wire leads can be wired to a terminal block or attached to a thermocouple connector. For installation, note that the red wire is negative.

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								Cable			Wire Lead
	Lg.	Dia.	Response Time, sec.	Max. Temp., ° F	Accuracy @ Temperature	Probe Material	Insulation	Sensor Type	Lg., ft.	Material	Max. Temp., ° F	Lg.	AWG		Each
Type J Thermocouple







				1/8 NPT Male Probe Connection

				3"	1/8"	0.5	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K119	000000


				3"	3/16"	1	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K12	00000
				6"	1/8"	0.5	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K121	00000
				6"	3/16"	1	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K122	00000
				9"	1/8"	0.5	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K123	00000
				9"	3/16"	1	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K124	00000
				12"	1/8"	0.5	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K125	00000
				12"	3/16"	1	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K126	00000




						1/2 NPT Male Probe Connection

						3"	1/8"	0.5	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N27	00000


						3"	3/16"	1	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N11	00000
						3"	3/16"	1	1,150	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Insulated	Grounded	4	Fiberglass	900	3"	20	1245N24	000000
						6"	1/8"	0.5	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N28	00000
						6"	3/16"	1	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N14	00000
						9"	1/8"	0.5	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K115	00000
						9"	3/16"	1	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N17	00000
						12"	1/8"	0.5	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K116	00000
						12"	3/16"	1	700	±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N21	00000


						Type K Thermocouple







										1/8 NPT Male Probe Connection

										3"	1/8"	0.5	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K127	00000


										3"	3/16"	1	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K128	00000
										6"	1/8"	0.5	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K129	00000
										6"	3/16"	1	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K13	00000
										9"	1/8"	0.5	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K131	00000
										9"	3/16"	1	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K132	00000
										12"	1/8"	0.5	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K133	00000
										12"	3/16"	1	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K134	00000




												1/2 NPT Male Probe Connection

3"												1/8"	0.5	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N29	00000


3"	3/16"											1	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Insulated	Grounded	4	Fiberglass	900	3"	20	1245N25	000000
3"	3/16"											1	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N12	00000
6"	1/8"	0.5										900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N31	00000
6"	3/16"	1	900									Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Insulated	Grounded	4	Fiberglass	900	3"	20	1245N26	000000
6"	3/16"	1	900									Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N15	00000
9"	1/8"	0.5	900									Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K117	00000
9"	3/16"	1	900									Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N18	00000
12"	1/8"	0.5	900									Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K118	00000
12"	3/16"	1	900									Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N22	00000


Type T Thermocouple







				1/8 NPT Male Probe Connection

				3"	1/8"							0.5	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K135	00000


				3"	3/16"							1	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K136	00000
				6"	3/16"							1	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K137	00000
				9"	3/16"							1	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K138	00000
				12"	3/16"							1	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	1/2"	24	3872K139	00000




												1/2 NPT Male Probe Connection

												3"	1/8"	0.5	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N32	00000


												3"	3/16"	1	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N13	00000
						6"						3/16"	1	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N16	00000
						9"	3/16"					1	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N19	00000
						12"	3/16"					1	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	304 Stainless Steel	Noninsulated	Grounded	4	Fiberglass	900	3"	24	1245N23	00000

Noninsulated Thermocouple Probes for Liquids and Gases

An economical alternative to insulated thermocouple probes, these probes measure the temperature of liquids and gases. Made of stainless steel, they resist corrosion. The stainless steel also shields the sensor from impact, so you can use them with solids, such as in molds and dies. Because there is no insulation to protect the internal wires, you should not bend these probes. They’re also known as tube-and-wire thermocouples.

To view and store measurements, add a connector to the wire leads and connect these probes to a controller, thermometer, or other temperature-reading device. You can also attach thermocouple wire to the wire leads if you need to extend the probe’s reach. Pick the thermocouple type that best covers the temperature range you expect your liquid, gas, or solid to be. You should also make sure the thermocouple type you choose is compatible with the device you connect it to.

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

Note: When installing probes with wire leads, the red wire is negative.

304 Stainless Steel Probes with Cable

Image of Product. Front orientation. Thermocouples. Noninsulated Thermocouple Probes for Liquids and Gases .

	Probe							Cable				Wire Lead
	Lg.	Dia.	Response Time	Max. Temp., ° F	Accuracy @ Temperature	Insulation	Sensor Type	Style	Lg., ft.	Material	Max. Temp., ° F	Lg.	AWG		Each
Type J







				Wire Leads

				6"	1/8"	Not Rated	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K111	000000


				6"	3/16"	Not Rated	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K112	00000
				6"	1/4"	Not Rated	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K113	00000
				12"	1/8"	Not Rated	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K114	00000
				12"	3/16"	Not Rated	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K115	00000
				12"	1/4"	Not Rated	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K116	00000
				18"	3/16"	Not Rated	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K117	00000
				18"	1/4"	Not Rated	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K118	00000
				24"	3/16"	Not Rated	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K119	00000
				24"	1/4"	Not Rated	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K121	00000


				Type K







								Wire Leads

								6"	1/8"	Not Rated	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K122	00000


								6"	3/16"	Not Rated	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K123	00000
								6"	1/4"	Not Rated	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K124	00000
								12"	1/8"	Not Rated	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K125	00000
								12"	3/16"	Not Rated	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K126	00000
								12"	1/4"	Not Rated	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K127	00000
								18"	3/16"	Not Rated	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K128	00000
								18"	1/4"	Not Rated	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K129	00000
								24"	3/16"	Not Rated	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K131	00000
								24"	1/4"	Not Rated	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K132	00000


								Type T







												Wire Leads

												6"	1/8"	Not Rated	700	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K133	00000


												6"	3/16"	Not Rated	700	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K134	00000
												6"	1/4"	Not Rated	700	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K135	00000
												12"	3/16"	Not Rated	700	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K136	00000
												12"	1/4"	Not Rated	700	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K137	00000
18"												1/4"	Not Rated	700	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K138	00000
24"	1/4"											Not Rated	700	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	Noninsulated	Grounded	Straight	4	Fiberglass	900	3"	20	3871K139	00000

Cut-to-Length Thermocouple Probes for Liquids and Gases

Trim these probes to the exact length you need with a pipe cutter. They’re a good choice if you need a perfect fit in a thermowell. Plus, if a probe breaks, you can cut one of these to the same length and replace it right away. Made of stainless steel, they resist corroding from liquids and gases. The stainless steel also shields the sensor from impact, so you can use them with solids, such as in molds and dies.

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

Note: When installing probes with wire leads, the red wire is negative.

304 Stainless Steel Probes

Image of Product. Front orientation. Contains Annotated. Thermocouples. Cut-to-Length Thermocouple Probes for Liquids and Gases .

	Probe									Wire Lead
	Lg.	Dia.	Cuttable Lg.	Response Time, sec.	Max. Temp., ° F	Accuracy @ Temperature	Insulation	Sensor Type	Sensing Tip Lg.	Lg.	AWG		Each
Type J







				Wire Leads

				24"	3/16"	20"	4.4	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K11	0000000


				24"	1/4"	20"	4.4	400	±4° F Between 32° F to 400° F	Noninsulated	Grounded	3"	6"	20	38705K41	00000
				24"	1/4"	20"	4.4	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K26	00000
				24"	1/4"	20"	4.4	1,300	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K51	00000
				48"	3/16"	44"	4.4	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K12	000000
				48"	1/4"	44"	4.4	400	±4° F Between 32° F to 400° F	Noninsulated	Grounded	3"	6"	20	38705K31	000000
				48"	1/4"	44"	4.4	900	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K27	000000
				48"	1/4"	44"	4.4	1,300	±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K35	000000


				Type K







								Wire Leads

								24"	3/16"	20"	4.4	1,300	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K13	000000


								24"	1/4"	20"	4.4	400	Not Rated Below 32° F ±4° F Between 32° F to 400° F	Noninsulated	Grounded	3"	6"	20	38705K42	00000
								24"	1/4"	20"	4.4	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K28	00000
								24"	1/4"	20"	4.4	1,300	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K52	00000
								24"	3/8"	20"	4.4	1,300	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K15	000000
								48"	3/16"	44"	4.4	1,300	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K14	000000
								48"	1/4"	44"	4.4	400	Not Rated Below 32° F ±4° F Between 32° F to 400° F	Noninsulated	Grounded	3"	6"	20	38705K32	000000
								48"	1/4"	44"	4.4	900	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K29	000000
								48"	1/4"	44"	4.4	1,300	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K36	000000
								48"	3/8"	44"	4.4	1,300	Not Rated Below 32° F ±4° F Between 32° F to 533° F ±0.75% Above 533° F	Noninsulated	Grounded	3"	6"	20	38705K16	000000


								Type T







												Wire Leads

												24"	3/16"	20"	4.4	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	Noninsulated	Grounded	3"	6"	20	38705K17	000000


												24"	1/4"	20"	4.4	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	Noninsulated	Grounded	3"	6"	20	38705K43	00000
												48"	3/16"	44"	4.4	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	Noninsulated	Grounded	3"	6"	20	38705K18	000000
												48"	1/4"	44"	4.4	400	Not Rated Below 32° F ±1.8° F Between 32° F to 240° F ±0.75% Above 240° F	Noninsulated	Grounded	3"	6"	20	38705K33	000000

Thermocouple Probes for Solids


Style 1	Style 2

Flat-Pin Mini

Connector

Pierce pliable plastics, rubber, and other soft solids to check the internal temperature. Also known as penetration probes, these thermocouple probes have a stainless-steel housing with a narrow tip. They are often plugged into handheld thermometers and have a handle for a comfortable grip. A coiled cable helps avoid tangles for neat and compact storage, while also allowing you to stretch it out when you need more reach. Pick the thermocouple type that best covers the temperature range you expect your solid to be. You should also make sure the thermocouple type you choose is compatible with the device you plan to connect it to.

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

304 Stainless Steel Probes with Cable


Style 1	Style 2	Flat-Pin Mini Connector

Insulated—Insulated probes are filled with magnesium oxide for extra protection around the internal wires.

		Probe									Cable
	Style	Style	Lg.	Dia.	Response Time, sec.	Max. Temp., ° F	Accuracy @ Temperature	Insulation	Handle Material	Sensor Type	Style	Lg., ft.	Material	Max. Temp., ° F		Each
Type J







				Flat-Pin Mini Thermocouple Connector

				1	Pointed Tip	6"	0.134"	2	400	±4° F Between 32° F to 400° F	Insulated	Nylon	Grounded	Coiled	5	PVC	220	39105K654	0000000


				Type K







								Flat-Pin Mini Thermocouple Connector

								1	Pointed Tip	4 1/2"	1/8"	4	500	Not Rated Below 32° F ±4° F Between 32° F to 500° F	Noninsulated	Nylon	Grounded	Coiled	4	Polyurethane Rubber	175	39105K72	00000


								1	Pointed Tip	6"	3/32"	2	500	Not Rated Below 32° F ±4° F Between 32° F to 500° F	Noninsulated	Nylon	Grounded	Coiled	4	Polyurethane Rubber	175	39105K652	00000
								2	Pointed Tip	36"	5/16"	6	400	Not Rated Below 32° F ±4° F Between 32° F to 400° F	Insulated	304 Stainless Steel	Grounded	Coiled	5	Polyurethane Rubber	220	9261T36	000000