ETTC Embeddable Thermocouple with Miniature Cone Barbed Shaped Tip

OVERVIEW

• Type J, K, or T thermocouple
Embed cone barbed tip into material (using insertion tool)
Fiberglass or Teflon insulated wires
• Designed for research & development applications


MADE IN THE USA


ETTC series Embeddable Thermocouples are an ideal solution for sub-surface temperature measuring applications.  Special limits of error accuracy thermocouple wire is cut to the required length and the conductors are passed through a miniature cone shaped barbed tip then TIG welded to form a measuring junction.

The cone barbed tip is pressed into the surface using an Embedding Tool (sold separately).

Ideal for, but not limited to, sub-surface temperature measurements of rubber, plastic, or wood materials.  As an option, we can install a Mini Connector on the adjacent wire lead termination end.

Contact us for volume pricing. Custom configurations available.
 

Options:

Thermocouple Type
Thermocouple Cable Length
Thermocouple Connector
SKU
ETTC-072-G-TF-K-N
Availability
In stock
Price
$31.00
Add to Cart

TECHNICAL SPECIFICATIONS

Thermocouple type: 

J, K, or T

Sensing Junction Type:

Grounded

Accuracy:

Greater of +/-0.4% of reading or +/- 1.1°C (Special Limits of Error)

Cone Tip Material:

Stainless Steel

Cone Tip Dimensions:

Max OD = 0.125”, Min OD = 0.150” (Max OD = 3.2 mm, Min OD = 3.8 mm)

Insertion Tool:

Order p/n: ETTC-TOOL

Response Time*:

500 mS

*Time Constant:

Defined as the time required to reach 63.2% of an instantaneous temperature change. Five time constants are required to approach 100% of the step change value

Lead Wire:

Fiberglass insulated, Fiberglass outer jacket, 24 AWG, solid core
or
Teflon insulated, Teflon outer jacket, 24 AWG, solid core

 

PRODUCT NUMBERS

Fast-Response Embedded Temperature Sensor for R&D and Material Testing

The ETTC Embeddable Thermocouple with Miniature Cone Barbed Tip is a specialized temperature sensor designed for direct embedding into materials for accurate internal temperature measurement. Engineered for research and development applications, this thermocouple provides fast response, secure mechanical retention, and reliable performance in environments where surface-mounted sensors are not sufficient.

With its unique cone-shaped barbed tip, the ETTC is ideal for capturing temperature data directly within materials such as plastics, composites, elastomers, and other substrates where internal temperature profiling is critical.

Designed for Embedded Temperature Measurement

Unlike traditional surface or immersion thermocouples, the ETTC is specifically designed to be embedded into the material being measured. The miniature cone tip allows for:

  • Secure insertion into soft or semi-rigid materials

  • Stable positioning during testing or operation

  • Accurate measurement of internal temperatures

As described in the datasheet, the probe is intended to be installed using a dedicated insertion tool, ensuring proper placement and repeatable results.

This makes it particularly valuable for applications where internal temperature gradients must be measured.

Cone Barbed Tip for Secure Retention

The defining feature of the ETTC is its miniature cone-shaped barbed tip, which provides mechanical retention once inserted into a material.

  • Designed to anchor within the test material

  • Minimizes movement or displacement

  • Ensures consistent thermal contact

The cone tip is constructed from 304 stainless steel, offering durability and resistance to wear during repeated use.

Fast Response for Dynamic Measurements

The ETTC is designed for rapid thermal response:

  • Response time: ~500 milliseconds (time constant)

This fast response allows the sensor to quickly track temperature changes within materials, making it ideal for:

  • Thermal cycling tests

  • Dynamic heating and cooling processes

  • Real-time temperature monitoring in experiments

Special Limits of Error Accuracy

The ETTC thermocouple is manufactured using Special Limits of Error (SLE) materials:

  • Accuracy: Greater of ±0.4% of reading or ±1.1°C

This ensures high measurement precision and repeatability, even in demanding applications.

Multiple Thermocouple Type Options

The ETTC is available in several thermocouple types to match specific application requirements:

  • Type J

  • Type K

  • Type T

Each type offers unique advantages:

  • Type K: Wide temperature range and general-purpose use

  • Type J: Suitable for moderate temperature applications

  • Type T: Excellent performance at lower temperatures

This flexibility allows users to select the optimal sensor for their specific testing conditions.

Grounded Junction for Faster Response

The ETTC features a grounded sensing junction:

  • Faster thermal response compared to ungrounded designs

  • Improved heat transfer between the sensor and material

  • Ideal for applications where response time is critical

Flexible Lead Wire Options

The ETTC is available with high-quality lead wire options to suit different environments:

Insulation Options:

  • Fiberglass insulation with fiberglass outer jacket

  • Teflon insulation with Teflon outer jacket

Wire Specifications:

  • 24 AWG stranded conductors

  • Flexible and durable construction

These options allow the sensor to be used in both high-temperature and chemically sensitive environments.

Multiple Cable Length and Connector Options

The ETTC can be configured to meet specific application requirements:

Cable Length Options:

  • 36 inches

  • 72 inches

  • 144 inches

Connector Options:

  • No connector (bare leads)

  • Male miniature plug

  • Standard thermocouple plug

This flexibility allows for easy integration into a wide range of measurement systems.

Compact Design for Minimal Thermal Disturbance

The ETTC’s small size allows it to be embedded with minimal disruption to the material being tested:

  • Cone tip diameter approximately 0.125" to 0.150"

  • Compact profile reduces thermal mass

  • Minimizes impact on material properties

This makes it ideal for precision testing where maintaining material integrity is important.

Designed for Research and Development Applications

The ETTC is specifically designed for R&D and experimental applications where internal temperature measurement is required.

Typical use cases include:

  • Material testing and thermal profiling

  • Composite and polymer research

  • Injection molding and curing processes

  • Adhesive and sealant evaluation

  • Battery and electronics testing

Its ability to measure internal temperatures makes it an essential tool for engineers and researchers.

Dedicated Insertion Tool for Accurate Placement

To ensure proper installation, a dedicated insertion tool is available:

  • Allows precise placement of the cone tip

  • Reduces risk of damage to the sensor

  • Ensures consistent insertion depth

This tool helps achieve repeatable and reliable measurement results.

Durable Construction for Repeated Use

The ETTC is designed for durability and long-term use:

  • Stainless steel tip for strength and wear resistance

  • High-quality lead wires for flexibility

  • Robust construction for repeated insertion

This ensures consistent performance across multiple test cycles.

Why Use an Embedded Thermocouple?

Embedded thermocouples offer several advantages over surface-mounted sensors:

  • Direct measurement of internal temperature

  • Improved accuracy in thermal gradient analysis

  • Reduced influence of ambient conditions

  • More representative data for material behavior

The ETTC is specifically designed to deliver these benefits in a compact and reliable form.

Key Features at a Glance

  • Embeddable cone barbed tip design

  • Type J, K, or T thermocouple options

  • Special Limits of Error accuracy

  • Fast response time (~500 ms)

  • Grounded junction for improved performance

  • 304 stainless steel tip

  • Fiberglass or Teflon insulated lead wires

  • Multiple cable lengths and connector options

  • Designed for R&D and material testing applications

  • Made in the USA

A Specialized Solution for Internal Temperature Measurement

The ETTC Embeddable Thermocouple provides a unique and effective solution for measuring temperature inside materials. Its cone tip design ensures secure placement, while its fast response and high accuracy make it ideal for demanding testing applications.

Optimize Your Thermal Testing Setup

Whether you are analyzing material behavior, validating product performance, or conducting research, the ETTC offers the precision and reliability needed to capture accurate internal temperature data.

Contact us today to learn more or configure the right thermocouple for your application.

HIDE SHOW MORE