Thermocouples | McMaster-Carr

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Thermocouple Type

Thermocouple Sensor Connection

Bluetooth

Flat-Pin Mini Thermocouple Connector

Round-Pin Thermocouple Connector

Terminal

Wire Leads

System of Measurement

Probe Length

Mount Type

For Use With

Thermocouple Connection Heads

Wire

Air

Gas

Electrical Connection

3.5 mm Audio

Bluetooth

Flat-Pin Mini Thermocouple Connector

Micro M12

Round-Pin Thermocouple Connector

Probe Diameter

Maximum Temperature

1,000° F to 1,999.9° F

2,000° F to 2,999.9° F

Cable Length

Sensor Type

Component

Material

Probe Material

Maximum Cable Temperature

Cable Material

Thermocouple Probe Type

Color

Probe Connection Pipe Size

1/8

1/4

1/2

American Wire Gauge (AWG)

Accuracy @ Temperature

±0.75% Above 240° F

±0.75% Above 533° F

±1.5% Above 200° F

±1.8° F Between 32° F to 100° F

±1.8° F Between 32° F to 200° F

±1.8° F Between 32° F to 240° F

±2% Above 300° F

±2.7° F Between 32° F to 533° F

±2° F Below 200° F

±3% Below 800° F

±3° F Below 200° F

±4° F Between 32° F to 200° F

±4° F Between 32° F to 220° F

±4° F Between 32° F to 300° 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

±5% Between 241° F to 440° F

For Thermocouple Wire Type

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

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1,215 Products

Thermocouples

Thermocouple Probes for Liquids and Gases

Measure the temperature of liquids and gases without corroding

245 products

Thermocouple Probes for Air and Surfaces

Press the probe to a surface, or leave untouched to measure air temperature

26 products

Bayonet-Mount Thermocouple Probes for Surfaces

Quick to install and remove, the bayonet fitting secures the probe against heavy vibrations

10 products

Threaded Thermocouple Probes for Liquids and Gases

The male NPT fitting threads into thermowells, pipes, and tanks

66 products

Bolt-On Thermocouple Probes for Surfaces

Bolt onto motors, machines, and other equipment so they won’t shake loose

21 products

Adhesive-Back Thermocouple Probes for Surfaces

Peel off the adhesive backing and press onto a surface to measure its temperature

6 products

Thermocouple Probes with Armored Cable for Liquids and Gases

The armored stainless steel cable protects the wiring from corrosion and wear

52 products

Thermocouple Probes with Armored Cable for Air and Surfaces

Measure air and surface temperatures in corrosive environments

27 products

High-Temperature Thermocouple Probes for Air and Surfaces

Thick, insulated wire withstands forging, die casting, and heat treating

16 products

Hazardous Location Threaded Thermocouple Probes for Liquids and Gases

The FM-approved head is safe for use near flammable gases or combustible dust

12 products

Threaded Thermocouple Probes for Surfaces

Thread directly into a tapped hole for continuous monitoring

21 products

Thermocouple Probes for Pipe, Tube, and Hose

Wrap around pipe, hose, or other tubular shapes to measure surface temperature

12 products

Magnetic Thermocouple Probes for Surfaces

Hold probes firmly in place on motors, bearings, and other magnetic surfaces

11 products

Noninsulated Thermocouple Probes for Liquids and Gases

An economical alternative to insulated thermocouple probes

27 products

Thermocouple Probes with Armored Cable for Solids

Measure the internal temperature of soft solids in corrosive environments

6 products

Threaded Thermocouple Probe Transmitters for Liquids and Gases

Send temperature readings to remote devices without using a separate transmitter

35 products

Cut-to-Length Thermocouple Probes for Liquids and Gases

Trim these probes to the exact length you need

22 products

Reduced-Tip Thermocouple Probes for Liquids and Gases

The thin tip offers fast response times while the rest of the probe is thick for strength

12 products

Thermocouple Probes for Solids

Pierce plastics, rubber, and other soft solids to measure internal temperature

5 products

Dual-Output Thermocouple Probes for Liquids and Gases

Send temperature readings to two separate devices

12 products

Hazardous Location Threaded Thermocouple Probes with Thermowell for Liquids and Gases

FM-approved for use near flammable materials, with a thermowell to protect the probe

9 products

Handheld Thermocouple Probes for Surfaces

Plug into a handheld thermometer to check surface temperature on the go

3 products

Handheld Thermocouple Probes for Air

Plug into a handheld thermometer to check air temperature on the go

2 products

Threaded Thermocouple Probe Transmitters with Thermowell for Liquids and Gases

The thermowell shields the probe, and the transmitter sends readings to remote devices

15 products

Threaded Thermocouple Probes with Thermowell for Liquids and Gases

The stainless steel thermowell shields against corrosion, shock, and impact

9 products

Hazardous Location Threaded Thermocouple Probe Transmitters for Liquids and Gases

FM-approved to measure and transmit temperatures in hazardous areas

15 products

Handheld Magnetic Thermocouple Probes for Surfaces

Stick onto magnetic surfaces to measure temperatures around your facility

2 products

Clip-On Thermocouple Probes for Air

Measure temperature on vents, circuit boards, and other irregular surfaces

6 products

Sanitary Thermocouple Probes for Liquids and Gases

Measure temperature in dairy and food-processing applications

6 products

Wireless Thermocouple Transmitters for Liquids and Gases

Monitor temperatures via Bluetooth directly from your smart device

4 products

Pilot-Light Thermocouples for Natural Gas Water Heaters

Install in water heaters, ovens, and other devices that require a pilot light

4 products

Other Products

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

155 products

Thermocouple Wire

Connect thermocouples to switches, controllers, recorders, and thermometers

64 products

Thermocouple and RTD Fittings

Alter probe immersion depth or adapt unthreaded connections for use with threaded tanks and heads

50 products

Thermocouple Connector Adapters

Convert round-pin male connectors to flat-pin male connectors

10 products

Thermocouple Cords

Extend the reach of thermocouple probes

46 products

Thermometers

Monitor temperature in tanks, pipes, control panels, and other equipment

30 products

Thermocouple and RTD Connection Heads

Seal out dust and moisture and allow access to thermocouple and RTD sensor connections

7 products

Thermocouple and RTD Mounts

Join thermocouple connectors and probes that have different connection types

18 products

Thermocouple Transmitters

Check system temperatures from your smartphone or tablet

9 products

Thermocouple and RTD Protection Tubes

Shield thermocouple and RTD probes in large, unpressurized tanks

16 products

Thermocouple Connector Covers

Shield thermocouple connectors from dust and debris

1 product

Thermocouple Connector Brackets

Mount thermocouple probes or stabilize connections between wire leads and screw terminals

3 products

Terminal Blocks

Create tidy rows of wire connections that you can identify, test, and adjust on the spot

31 products

Noncontact Temperature Sensors

Monitor the temperature of hazardous, sensitive, and hard-to-reach materials without touching them

22 products

Terminals

Attach wire endings everywhere from circuit breaker panels to batteries

3 products

Thermocouple Insulating Sleeves

Protect thermocouple wire in extreme-temperature applications, such as die casting and heat treating

13 products