PT1000 Probes | McMaster-Carr

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3-Pin RTD

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52 Products

RTD Wire

Make custom RTD probes.

PVC Insulation—PVC insulation and jacket is good for general purpose applications.

FEP Insulation—FEP insulation and jacket is more abrasion and chemical resistant than PVC.

Fiberglass Insulation—Fiberglass insulation and jacket is rated for higher temperatures than PVC and FEP and is highly resistant to chemicals.

			Wire				Wire Color					Per Ft.
	RTD Probe Resistance, ohm	Max. Temp., ° F	AWG	Dia.	Max. Jacket Temp., ° F	No. of Wires	Positive	Negative	Jacket Color	Choose a Length, ft.		1-99	100-Up
Stranded Wire







				PVC Insulation and Jacket

				100; 1,000	220	22	0.03"	220	3	White	Red	White	10 , 20 , 50 , 100	4062K61	00000	00000




						FEP Insulation and Jacket

						100; 1,000	400	24	0.024"	400	4	White	Red	White	10 , 20 , 50 , 100	4062K12	0000	0000


						100; 1,000	400	22	0.03"	400	2	White	Red	White	10 , 20 , 50 , 100	4062K11	0000	0000
						100; 1,000	400	22	0.03"	400	3	White	Red	White	10 , 20 , 50 , 100	4062K62	0000	0000




								Fiberglass Insulation and Jacket

								100; 1,000	900	24	0.024"	900	3	White	Red	White with Red Stripe	10 , 20 , 50 , 100	4062K66	0000	0000


								100; 1,000	900	22	0.03"	900	3	White	Red	White with Red Stripe	10 , 20 , 50 , 100	4062K63	0000	0000

Adhesive-Back RTD Probes for Surfaces

About the thickness of a dime, these RTD probes stick to surfaces in tight spaces to measure temperature.

Wire-Lead Connection

MIL-STD-108—Probes that meet MIL-STD-108 are submersible, so they can monitor the temperature of water in tanks or containers.

			Probe						Cable		Wire
	RTD Probe Resistance, ohm	Temp. Range, ° F	Lg.	Wd.	Thk.	Accuracy	Response Time, sec.	Max. Pressure	Lg., ft.	Material	Lead Lg.	AWG	No. of Wires	Wire Color	Mil. Spec.		Each
Platinum Probe



		1,000	-4 to 300	9/16"	0.188"	0.063"	±0.12%	1.3	Not Rated	3	Silicone Rubber	1/2"	28	3	Red/White	MIL-STD-108	6568T52	0000000


		1,000	-4 to 350	5/8"	0.188"	0.063"	±0.12%	0.4	Not Rated	3	PTFE	1/2"	26	2	Red/White	—	6568T19	000000
		1,000	-4 to 350	5/8"	0.188"	0.063"	±0.12%	1	Not Rated	3	PTFE	1/2"	26	2	Red/White	—	6568T13	000000
		1,000	-4 to 350	5/8"	0.313"	0.063"	±0.12%	1.2	Not Rated	3	PTFE	1/2"	22	2	Red/White	—	6568T17	000000
		1,000	-4 to 350	13/16"	0.375"	0.063"	±0.12%	0.9	Not Rated	3	PTFE	1/2"	26	2	Red/White	—	6568T16	000000

Bolt-On RTD Probes for Surfaces


Style C	Style D	Style E	Style F

For reliable temperature readings in high-vibration environments, these RTD probes bolt onto the surface of motors and other equipment.

Wire-Lead Connection


Style C	Style D	Style E	Style F

MIL-STD-202 Method 204 Test Condition D—Probes that meet MIL-STD-202 Method 204 Test Condition D have been tested for use in vibration-heavy environments.

					Probe						Cable		Wire
	Style	RTD Probe Resistance, ohm	Temp. Range, ° F	Bolt Hole Dia.	Lg.	Wd.	Thk.	Accuracy	Response Time, sec.	Max. Pressure	Lg., ft.	Material	Lead Lg.	AWG	No. of Wires	Wire Color	Mil. Spec.	Fasteners Included		Each
303 Stainless Steel Probe



		C	1,000	-55 to 500	5/32"	3/8"	0.5"	0.188"	±0.12%	10	Not Rated	3	PTFE	1/2"	24	2	Red/White	MIL-STD-202 Method 204 Test Condition D	No	6577T27	0000000


		316/316L Stainless Steel Probe



				D	1,000	-90 to 930	5/32"	1 1/4"	0.313"	0.188"	±0.12%	10	Not Rated	3	Mica	1/2"	22	2	Red/White	MIL-STD-202 Method 204 Test Condition D	No	6577T22	000000


				300 Series Stainless Steel Probe



						E	1,000	-90 to 930	5/32"	1"	0.5"	0.188"	±0.12%	10	Not Rated	3	Mica	1/2"	22	2	Red/White	MIL-STD-202 Method 204 Test Condition D	No	6577T21	000000


						Nickel-Plated Copper Probe



								F	1,000	-55 to 500	17/64"	1"	0.5"	0.188"	±0.12%	10	Not Rated	3	PTFE	1/2"	24	2	Red/White	MIL-STD-202 Method 204 Test Condition D	No	6577T25	000000

Threaded RTD Probe Transmitters for Liquids and Gas

Send temperature readings directly to programmable logic controllers (PLCs)—with a built-in 4-20mA transmitter, these RTDs don’t require a separate signal converter. They have an NPT male probe connection, so they’re ready to screw into thermowells and other fittings on pipe and tanks. Made of 316 or 316L stainless steel, they resist corroding from harsh cleaning chemicals. This stainless steel also protects the RTD sensor inside from impact. They are also often installed in bores to measure the temperature of molds and dies. CE marked, they meet European safety standards.

4-Pole M12 Plug-In Connection

Image of Product. Front orientation. Contains Annotated. RTDs. Threaded RTD Probe Transmitters for Liquids and Gas, M12 Connection.

Fixed Probe—Fixed RTDs can be used directly in liquid or steam because they’re welded to their fitting for a liquid-tight seal.

IO Link Communication Protocol—RTDs with IO Link let you remotely adjust settings, read measurements, and receive error messages when connected to a PLC via an IO Link controller (not included). These RTDs meet EN 60751 Class A standards for temperature accuracy. UL and C-UL listed, they meet American and Canadian safety standards.

		Probe
	RTD Probe Resistance, ohm	Lg.	Dia.	Accuracy	Response Time, sec.	Probe Connection Pipe Size	Voltage, V DC	Max. Pressure, psi	Output Current, mA	Communication Protocol	Overall Lg.	Fitting Material	Temp., ° F		Each
NPT Male Probe Connection—Fixed 316L Stainless Steel Probe (IP67, IP68, IP69K)



		1,000	11/16"	1/4"	±0.5%	3	1/2	18 to 32	5,800	4 to 20	IO Link	4 1/8"	316L Stainless Steel	0 to 300	6467T51	0000000


		1,000	1 1/2"	1/4"	±0.5%	3	1/2	18 to 32	4,350	4 to 20	IO Link	5"	316L Stainless Steel	0 to 300	6467T52	000000
		1,000	3 1/2"	1/4"	±0.5%	3	1/2	18 to 32	4,350	4 to 20	IO Link	7"	316L Stainless Steel	0 to 300	6467T53	000000
		1,000	5 7/16"	1/4"	±0.5%	3	1/2	18 to 32	4,350	4 to 20	IO Link	8 7/8"	316L Stainless Steel	0 to 300	6467T54	000000

Cords

Electrical Connection	Electrical Connector Component	Cable Lead Lg., ft.	Voltage	Current, amp	Face Dia.		Each
M12, Wire Leads	Socket	12	250V AC, 250V DC	4	0.3"	6897K36	000000

Terminal Blocks for RTD and Thermocouple Connection Heads


Oblong	Round

These terminal blocks fit inside connection heads for thermocouples and RTD. Make sure the block has enough circuits for your probe, and use a wire that matches your probe type. You can insert stripped wire directly or attach a terminal to prevent damage from the fastener.

												Mounting Slots
	No. of Circuits	For Max. Wire Ga.	Wire Connection	Dia.	Ht.	Wd.	Dp.	For Thermocouple Wire Type	For RTD Probe Resistance, ohm	Max. Temp., ° F	Material	Ht.	Wd.	No. of		Each
Oblong



		2	14	Screw Terminal	—	1 3/8"	2"	1"	J, JX, K, KK, KX, T, TX	100; 1,000	1,000	Ceramic	3/16"	9/16"	2	38705K82	000000


		3	14	Screw Terminal	—	1 3/8"	2"	1"	J, JX, K, KK, KX, T, TX	100; 1,000	1,000	Ceramic	3/16"	9/16"	2	38705K83	00000
		4	14	Screw Terminal	—	1 3/8"	2"	1"	J, JX, K, KK, KX, T, TX	100; 1,000	1,000	Ceramic	3/16"	9/16"	2	5927N11	00000
		6	14	Screw Terminal	—	1 3/8"	2"	1"	J, JX, K, KK, KX, T, TX	100; 1,000	1,000	Ceramic	3/16"	9/16"	2	5927N12	00000


		Round



				2	14	Screw Terminal	1 15/16"	—	—	3/4"	J, JX, K, KK, KX, T, TX	100; 1,000	1,000	Ceramic	3/16"	5/16"	2	5927N13	00000


				3	14	Screw Terminal	1 15/16"	—	—	3/4"	J, JX, K, KK, KX, T, TX	100; 1,000	1,000	Ceramic	3/16"	5/16"	2	5927N14	00000
				4	14	Screw Terminal	1 15/16"	—	—	3/4"	J, JX, K, KK, KX, T, TX	100; 1,000	1,000	Ceramic	3/16"	5/16"	2	5927N15	00000
				6	14	Screw Terminal	1 15/16"	—	—	3/4"	J, JX, K, KK, KX, T, TX	100; 1,000	1,000	Ceramic	3/16"	5/16"	2	5927N16	00000

RTD Connectors


Male	Female

Attach plug-in connectors to RTD probes with wire leads.

								Material
	RTD Probe Resistance, ohm	No. of Connections	For Max. Wire Ga.	Max. Temp., ° F	Wire Connection	Pin Lg.	Distance Between Pins	Contacts	Body		Each
Round-Pin Male



		100; 1,000	3	20	400	Screw Terminal	9/16"	0.438"	Copper	Plastic	3869K77	00000


		Round-Pin Female



				100; 1,000	3	20	400	Screw Terminal	—	0.438"	Copper	Plastic	3869K76	00000

Threaded RTD Probes for Surfaces

Style C

Thread these RTD probes into threaded holes in molds, dies, and other objects to measure their temperature.

Wire-Lead Connection

Style C

MIL-STD-202 Method 204 Test Condition D—Probes that meet MIL-STD-202 Method 204 Test Condition D have been tested for use in vibration-heavy environments.

					Probe				Cable		Wire
	Style	RTD Probe Resistance, ohm	Temp. Range, ° F	Thread Size	Lg.	Accuracy	Response Time, sec.	Max. Pressure	Lg., ft.	Material	Lead Lg.	AWG	No. of Wires	Wire Color	Mil. Spec.		Each
303 Stainless Steel Probe



		C	1,000	-55 to 500	1/4"-20	3/8"	±0.12%	10	Not Rated	3	PTFE	1/2"	24	2	Red/White	MIL-STD-202 Method 204 Test Condition D	6577T28	0000000

Threaded RTD Probe Transmitters with Digital Display for Liquids and Gas

View temperature readings and adjust settings directly on these RTD probe transmitters. To communicate with programmable logic controllers (PLCs), they have a built-in transmitter with two outputs. One output can send a digital switching signal or use IO Link protocol with the addition of an IO Link controller (not included). The other can send a digital switching signal or a 4-20mA analog signal. The different output options make these RTDs good for a wide range of uses, including operating far away from a controller, taking automated measurements, and providing inputs to switching applications. All have an NPT threaded fitting welded onto the probe, so they’re ready to screw into containers, tanks, and pipes. Probe length is fixed. Made of 316L stainless steel, they are highly corrosion resistant.

These RTDs meet EN 60751 Class A standards for temperature accuracy. UL Listed, C-UL Listed, and CE Marked, all meet American, Canadian, and European safety standards.

4-Pole M12 Plug-In Connection

			Probe						Configurable Digital Output			Configurable Analog/Digital Output
	RTD Probe Resistance, ohm	Temp. Range, ° F	Lg.	Dia.	Accuracy	Response Time, sec.	Probe Connection Pipe Size	Max. Pressure, psi	No. of	Communication Protocol	Signal Output	No. of	Current, mA	Signal Output	Overall Lg.	Fitting Material	Sensing Element Material	Specs. Met	Voltage, V DC		Each
NPT Male Probe Connection—Fixed 316L Stainless Steel Probe with Plastic Head (IP67)



		1,000	-55 to 300	1/2"	1/4"	±0.75%	3	1/4	5,800	1	IO Link	NPN/PNP	1	4 to 20	NPN/PNP	4 7/8"	316L Stainless Steel	Platinum	EN 60751 Class A	18 to 32	6912N16	0000000


		1,000	-55 to 300	1/2"	1/4"	±0.75%	3	1/2	4,350	1	IO Link	NPN/PNP	1	4 to 20	NPN/PNP	4 7/8"	316L Stainless Steel	Platinum	EN 60751 Class A	18 to 32	6912N11	000000
		1,000	-55 to 300	1 1/4"	1/4"	±0.75%	3	1/4	5,800	1	IO Link	NPN/PNP	1	4 to 20	NPN/PNP	5 5/8"	316L Stainless Steel	Platinum	EN 60751 Class A	18 to 32	6912N17	000000
		1,000	-55 to 300	1 1/4"	1/4"	±0.75%	3	1/2	4,350	1	IO Link	NPN/PNP	1	4 to 20	NPN/PNP	5 5/8"	316L Stainless Steel	Platinum	EN 60751 Class A	18 to 32	6912N12	000000
		1,000	-55 to 300	3 1/4"	1/4"	±0.75%	3	1/2	3,625	1	IO Link	NPN/PNP	1	4 to 20	NPN/PNP	7 5/8"	316L Stainless Steel	Platinum	EN 60751 Class A	18 to 32	6912N13	000000
		1,000	-55 to 300	5 3/16"	1/4"	±0.75%	3	1/2	3,625	1	IO Link	NPN/PNP	1	4 to 20	NPN/PNP	9 1/2"	316L Stainless Steel	Platinum	EN 60751 Class A	18 to 32	6912N14	000000

Cords

Electrical Connection	Electrical Connector Component	Cable Lead Lg., ft.	Voltage	Current, amp	Face Dia.		Each
M12, Wire Leads	Socket	12	250V AC, 250V DC	4	0.3"	6897K36	000000

RTD Probes for Liquids and Gas

Obtain more precise and reliable liquid and gas temperature measurements than thermocouple probes. Some of these probes meet DIN standards for accuracy, meaning they’re precise even with fast temperature changes.

RTDs

IP68 Enclosure Rating and IP69K Enclosure Rating—IP68- and IP69K-rated probes have plug-in connections that can handle brief submersion and harsh washdowns.

			Probe
	RTD Probe Resistance, ohm	Temp. Range, ° F	Lg.	Dia.	Accuracy	Response Time, sec.	Enclosure Rating	Specs. Met		Each
4-Pin M12 Plug-In Connection—316L Stainless Steel Probe



		1,000	-40 to 300	6 1/4"	1/4"	±0.1%	3	IP68, IP69K	EN 60751 Class A	3866K61	0000000


		1,000	-40 to 300	6 1/4"	3/8"	±0.1%	3	IP68, IP69K	EN 60751 Class A	3866K71	000000
		1,000	-40 to 300	10 1/4"	1/4"	±0.1%	3	IP68, IP69K	EN 60751 Class A	3866K64	000000
		1,000	-40 to 300	10 1/4"	3/8"	±0.1%	3	IP68, IP69K	EN 60751 Class A	3866K54	000000
		1,000	-40 to 300	14 1/8"	1/4"	±0.1%	3	IP68, IP69K	EN 60751 Class A	3866K66	000000
		1,000	-40 to 300	14 1/8"	3/8"	±0.1%	3	IP68, IP69K	EN 60751 Class A	3866K73	000000
		1,000	-40 to 300	22"	3/8"	±0.1%	3	IP68, IP69K	EN 60751 Class A	3866K58	000000

Cords

Electrical Connection	Electrical Connector Component	Cable Lead Lg., ft.	Voltage	Current, amp	Face Dia.		Each
M12, Wire Leads	Socket	12	250V AC, 250V DC	4	0.3"	6897K36	000000

RTDs with Cable

IP67 Enclosure Rating—IP67-rated probes have plug-in connections that stand up to dust and temporary submersion.

			Probe
	RTD Probe Resistance, ohm	Temp. Range, ° F	Lg.	Dia.	Accuracy	Response Time, sec.	Cable Lg., ft.	Max. Cable Temp., ° F	Enclosure Rating	Specs. Met		Each
4-Pin M12 Plug-In Connection—316 Stainless Steel Probe



		1,000	-55 to 480	2"	1/4"	±0.1%	37	0.5	480	IP67	EN 60751 Class A	3866K35	0000000


		4-Pin M12 Plug-In Connection—316L Stainless Steel Probe



				1,000	-40 to 190	1 3/4"	1/4"	±0.1%	10	6.5	190	IP67	EN 60751 Class A	3866K45	000000


				1,000	-40 to 190	2"	3/8"	±0.1%	25	6.5	190	IP67	EN 60751 Class A	3866K31	000000

RTD Transmitters

Convert signals from your RTD probe into signal types that data loggers, controllers, and other instruments can read.

Thread In

Thread-in transmitters automatically recognize the probe type, so you don’t need to program them to match. They communicate via IO Link, which lets you change settings, read measurements, and receive error messages remotely when connected to a PLC via an IO Link controller (not included).

	Temp. Range, ° F	Dia.	Dp.	Voltage, V DC	Output Current, mA	Output Voltage, V DC	Communication Protocol	Housing Material	Enclosure Rating		Each
4-Pole M12



	100/1,000	-55 to 300	3/4"	2"	20 to 32	4 to 20	—	IO Link	Plastic	IP67	38875K91	0000000


	100/1,000	32 to 212	3/4"	2"	18 to 32	—	0 to 10	IO Link	Plastic	IP67	38875K94	000000
	100/1,000	32 to 212	3/4"	2"	20 to 32	4 to 20	—	IO Link	Plastic	IP67	38875K92	000000

Quick-Response Food and Beverage Panel-Mount Thermometers

A resistance temperature detector (RTD) probe responds to temperature change faster than dial thermometers.

					Probe							Material
Temp. Range	Resolution/Temp. Resolution	Accuracy	Digit Ht.	Cable Lg., ft.	Lg.	Dia.	Panel Cutout Dia.	Mount Type	For RTD Probe Resistance, ohm	Response Time, sec.	Max. Pressure @ Temp.	Housing	Probe	Includes	Operating Voltage, V AC	Electrical Connection Type		Each



	-40° F to 250° F	1° F	±2° F	1/2"	8	2 5/8"	1/4"	2 3/32"	Panel	1,000	1	Not Rated	Plastic	Stainless Steel	Bracket Assembly	120	Plug In	38675K343	0000000


	-40° C to 120° C	1° F	±2° C	1/2"	8	2 5/8"	1/4"	2 3/32"	Panel	1,000	1	Not Rated	Plastic	Stainless Steel	Bracket Assembly	120	Plug In	38675K429	000000