Thermocouples

Thermocouples measure temperature via voltage generated by two dissimilar metals, providing robust sensing in demanding industrial thermal environments.

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8S Stepped Assembly
Aircom
Aircom RTD Stepped Thermowell Assembly, 8S
$266.24 USD
Abrasion-Resistant Thermocouple
Pyromation
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CIP Sanitary-Connected RTDs & Thermocouple
Pyromation
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MgO Insulated Thermocouples with Sheath Termination
Pyromation
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$50.75 USD
Thermocouple Assemblies with Ceramic Protection Tubes
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Thermocouple - TC10-B
WIKA
Wika Thermocouple, Model TC10-B
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TC10 Thermocouple
Aircom
Aircom Thermocouple
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Spade Thermocouple and RTD
Pyromation
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MgO and Adjustable Tip Melt-Bolt Thermocouple
Pyromation
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Nozzle-Melt Thermocouple and RTD
Pyromation
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Thermocouple Straight Version per DIN 50446 - TC80
WIKA
Wika Thermocouple straight version per DIN 50446, Model TC80
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Angle Base-Metal Thermocouple Element
Pyromation
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Armor-Adjustable Immersion Thermocouple
Pyromation
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TC8 Complete Assembly Thermocouple
Aircom
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Penetration Style Thermocouple Sensor
Pyromation
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Spring-Loaded Thermocouple Assemblies with Hazardous Area Explosion-Proof Certification
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Insulated Wire Type Thermocouple
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Fiberglass Melt-Bolt Thermocouple
Pyromation
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Melt Bolt Thermocouple - TC47-MB
WIKA
Wika Melt bolt thermocouple, Model TC47-MB
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Heat-Tracing Thermocouple Assemblies - Hazardous Area Explosion-Proof-Certified
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Fixed-Sheath Thermocouple Assemblies with Explosion-Proof Connection Head
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Thermocouples with Metal-Alloy Protection Tube
Pyromation
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Spring-Adjustable Immersion Thermocouple
Pyromation
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Angle Thermocouples with Special-Service Protection Tube
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Ring Thermocouple
Pyromation
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Thermocouples with Special-Service Composite Protection Tube
Pyromation
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MgO Thermocouple Pipe Wells with Self-Contained, Spring-Loaded Elements and Optional Transmitters
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Cerite® III - Thermocouples Elements for Molten Aluminum
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Thermocouple Assemblies with Protection Tubes for Molten Aluminum
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Manifold Thermocouple - TC47-MT
WIKA
Wika Manifold thermocouple, Model TC47-MT
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Fixed-Sheath Thermocouple Assemblies with General-Purpose Connection Head
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General-Purpose Tube and Wire Thermocouple
Pyromation
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Thermocouple Assembly with Thermowells - Hazardous Area Explosion-Proof-Certified
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Under-the-Band Thermocouple - TC47-UB
WIKA
Wika Under the band thermocouple, Model TC47-UB
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Thermocouple Assemblies with Double Protection Tube
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TC5 Thermocouple
Aircom
Aircom Thermocouple, TC5
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MgO Thermocouple Pipe Well Replacement Element
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Cerite® III Thermocouples Assemblies for Molten Aluminum
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FEP-Coated Thermocouple Assemblies
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High-Temperature Thermocouple Assemblies
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Exhaust Engine Thermocouple Assemblies
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Miniature Thermocouple Sensor
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Threaded Nozzle Thermocouple
Pyromation
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Angle Thermocouples with Metal-Alloy Protection Tube
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Miniature MgO Thermocouple
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Adjustable Bayonet Thermocouple - TC47-AB
WIKA
Wika Adjustable bayonet thermocouple, Model TC47-AB
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Process Thermocouple - TC12-B, TC12-M
WIKA
Wika Process thermocouple, Models TC12-B, TC12-M
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Measuring Insert for Thermocouple - TC10-K
WIKA
Wika Measuring insert, Model TC10-K
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Thermocouples

Thermocouples are widely used temperature sensors consisting of two dissimilar metal wires joined at a measuring junction, generating a voltage proportional to temperature differences between the sensing point and reference junction. Constructed from various metal combinations, such as Type K (chromel-alumel), Type J (iron-constantan), or Type T (copper-constantan), they provide versatile temperature measurement capability across wide temperature ranges, extreme conditions, and harsh environments.

Their primary advantages include rapid response times, durability under mechanical stress, capability to measure very high temperatures, and suitability for challenging operating conditions. Thermocouples effectively detect dynamic thermal changes, making them invaluable in processes requiring fast, accurate temperature feedback. While less precise than RTDs, their robustness and wide temperature capabilities often make them the sensor of choice in demanding industrial scenarios.

Thermocouples are extensively used in diverse industrial applications, including power generation, chemical processing, steel production, glass manufacturing, oil refining, food and beverage processing, and furnace monitoring. Typical applications encompass measuring temperatures within furnaces, reactors, kilns, gas turbine exhausts, engines, pipelines, and processing vessels—critical areas where reliable thermal control and operational safety are paramount.