Thermocouples/Temperature Sensors

Explore Ashcroft thermocouple sensors and thermocouple assemblies for your specific application.

Ashcroft thermocouples and assemblies monitor temperature in industrial, process and hazardous installations. Available with E, J, K, N & T type thermocouples, they are designed for use with either DIN 43772/T.2 or ISA-ds 49 style thermowells along with DIN and ASME type lag extensions. A wide selection of aluminum and 316 stainless steel connection heads make these thermocouples configurable to the requirements of nearly any installation.

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S10 Thermocouple with Metric Connection

S10 Thermocouple Mineral Insulated Probe Assemblies with or without Lag extensions designed with metric fittings and connections.

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S50 Industrial Thermocouple with NPT Connections

S50 Thermocouple Mineral Insultated Probe Assemblies with or without Lag extensions designed with NPT fittings and connections.

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S70 Tube Skin Thermocouple

S70 tube skin thermocouple types J, K and N for monitoring process temperature without the use of a thermowell. Skin type sensors accurately and reliably...

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S01 Thermocouple Insert

S01 Thermocouple Mineral Insulated Probe Insert Assemblies used in industrial applications for probe replacements.

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S80 Thermocouple Temperature Probe

S80 thermocouple temperature probe with mineral insulation, available with optional connectors.

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Types of Thermocouples

Ashcroft offers a broad range of thermocouples engineered to provide fast, accurate, and reliable temperature measurement across industrial, process, OEM, and hazardous applications. Available in direct mount, remote mount, replaceable insert, and specialty configurations, Ashcroft thermocouples are designed for easy integration into thermowells and demanding process temperature measurement systems.

General Purpose Thermocouples – Ideal for delivering reliable temperature measurement across industrial processes, OEM equipment, and general manufacturing applications.

Direct Mount Thermocouples – Built for direct installation into thermowells or process connections, providing rugged, reliable temperature measurement for industrial and process applications.

Remote Mount Thermocouples – Engineered with a remote-mounted connection head to isolate electronics from vibration, high temperatures, and difficult installation environments while maintaining measurement accuracy.

Thermocouple Insert Assemblies – Used as replacement sensing elements for existing thermowells, simplifying maintenance while extending the service life of temperature measurement assemblies.

Tube Skin Thermocouples – Ideal for accurately monitoring the surface temperature of process tubes and piping in furnaces, heaters, and other high-temperature industrial applications.

Hazardous Location Thermocouples – Explosion proof, intrinsically safe and non-incentive assemblies for hazardous areas.

Mineral Insulated Thermocouples – Built with rugged, mineral insulated probe assemblies to withstand vibration, harsh environments, and elevated temperatures.

Industry Applications Where Thermocouples are Used

Ashcroft Thermocouples are used across a wide range of industries to provide accurate and reliable temperature measurement for process monitoring, equipment protection, and quality control.

Oil & Gas – Supports upstream, midstream, and downstream process monitoring and equipment protection.

Chemical & Petrochemical – applied across reactors, storage tanks, pipelines, and other demanding process environments.

Power Generation – Integrated into boilers, turbines, heat exchangers, cooling systems, and auxiliary equipment.

Water & Wastewater – Enables monitoring across treatment, pumping, and distribution systems to monitor critical process temperatures.

Food & Beverage – Supports sanitary processing, production, and packaging applications requiring hygienic temperature measurement.

Industrial Manufacturing & OEM – Incorporated into machinery, industrial equipment, and automated production processes.

HVAC & Refrigeration – Applied in heating, cooling, refrigeration, and building automation systems.

Hydrogen & Alternative Energy – Plays a role in hydrogen production, storage, fuel cell systems, and emerging energy applications.