These sheathed thermocouple sensors are suitable for compact installations, vibration-prone environments, and applications requiring fast temperature response. Probe length, bending angle, junction type, connector, thread, and cable configuration can be customized for OEM and replacement applications.

For a detailed comparison of construction and application differences, see our guide to Sheathed vs Assembly Thermocouples.

Sheathed Thermocouple Product Series

Sheathed Thermocouple Configurations

Sheathed Thermocouple Type Selection

EaseWise supplies mineral-insulated thermocouples in Type K, J, T, E, and N configurations. Select the thermocouple type according to the required temperature range, measurement environment, chemical conditions, and controller compatibility.

Sheathed Thermocouple Sizes and Materials

Probe diameters from 0.5 mm to 10 mm are available for different installation and response-time requirements. Common sheath materials include SS304, SS316, and Inconel 600.

Sheathed Thermocouple Options

• Insulation: High-purity MgO mineral insulation
• Junction: Grounded, ungrounded, or exposed junction according to application
• Connection: Connector, lead wire, terminal, or customized termination
• Thread: Metric, NPT, BSP, or customized thread options
• Shield: Available according to installation requirements
• Accuracy: Standard or customized accuracy options
• Probe length: Custom lengths available
• Bending: Straight, L-type, and customized bending configurations

Sheathed Thermocouple Response Time

Probe diameter has a direct effect on the response characteristics of a sheathed thermocouple. Smaller diameters generally provide faster response, while larger diameters offer greater mechanical strength and durability.

Recommended Sheathed Thermocouple Diameter

Choose the probe diameter according to the available installation space, required response time, mechanical strength, insertion depth, and temperature conditions.

• 0.5–1.0 mm: Suitable for very small measurement points and fast-response applications.
• 1.5–3.0 mm: Suitable for compact industrial equipment and general temperature monitoring.
• 4.0–6.0 mm: Suitable when additional mechanical strength is required.
• 8.0–10 mm: Suitable for demanding installations requiring a stronger probe structure.

Sheathed Thermocouple Applications

These sheathed thermocouples are used for temperature measurement in industrial equipment and process systems where compact construction, mechanical protection, and reliable temperature response are important.

• Industrial machinery
• Plastic processing equipment
• Injection molding machines
• Extrusion equipment
• Furnaces and ovens
• Heat treatment equipment
• Process control systems
• Dies and molds
• Laboratory equipment
• OEM temperature monitoring systems

For a broader range of industrial temperature measurement solutions, see our Industrial Thermocouples and Thermocouple Applications.

How to Choose a Sheathed Thermocouple

When selecting a sheathed thermocouple, consider the thermocouple type, sheath material, probe diameter, probe length, junction type, mounting method, operating temperature, response-time requirement, and connection configuration.

Type K is commonly selected for general industrial applications, while other thermocouple types may be appropriate for different temperature ranges or measurement environments.

For a more detailed selection process, see our Thermocouple Types & Selection Guide.

Sheathed Thermocouple OEM Solutions

EaseWise supplies sheathed thermocouples for OEM, replacement, and industrial temperature measurement applications. Custom options include probe diameter, probe length, sheath material, thermocouple type, bending angle, junction type, connector, thread, lead wire, and mounting configuration.

For OEM projects, drawings, specifications, photos, or existing samples can be provided to help determine the appropriate construction.

Related Thermocouple Products

• Industrial Thermocouples
  – K, J, T, E, N, S, R, and B thermocouple options for industrial temperature measurement.
• Spring Loaded Thermocouple
  – spring-loaded construction for reliable contact and flexible installation.
• Mini Plug Thermocouple
  – compact thermocouple configuration for space-limited installations.
• Threaded Compression Fitting Thermocouple
  – adjustable threaded mounting for industrial temperature measurement.

Related Thermocouple Content

• Sheathed vs Assembly Thermocouple
  – comparison of construction, installation, and application differences.
• Thermocouple Types & Selection Guide
  – guide to thermocouple types and selection considerations.
• Thermocouple Probe Diameter & Insertion Length
  – guidance on probe diameter and insertion length selection.
• High-Temperature Thermocouple Selection for Industrial Furnaces
  – considerations for high-temperature furnace applications.

Request a Sheathed Thermocouple Quote

Need a sheathed thermocouple for an OEM or replacement application? Send us your required thermocouple type, probe diameter, length, sheath material, junction type, thread, connector, operating temperature, and quantity.

Request a Sheathed Thermocouple Quote