Thermal Conductivity Kit

Developed by the experts at C-Therm Technologies Ltd., the TCkit offers thermal conductivity analysis at an affordable price.

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Introducing the C-THERM Thermal Conductivity Kit

An economical “do-it-yourself” solution, the TCkit is targeted primarily towards academic researchers. Employing the Transient Plane Source (TPS) method, the TCkit includes the tools & software needed to build and customize a thermal conductivity analyzer at a fraction of the price. 

Paired with a standard Source Measure Unit (sold seperately), the TCkit is a great way to start testing thermal conductivity, now!


What's in the box?

FLEX Transient Plane Source (TPS) Thermal Conductivity Sensor with 4-Prong SMU Connector

Stainless Steel 304 Reference Samples

TECAS™ Control Software on USB Key

Serial-to-USB Communication Cable

Step-by-Step User Guide

TCkit Brochure



The TCkit from C-therm is simple-to-use and set up yet sophisticated in thermal analysis of a wide variety of materials such as low 'k' metals, rocks and almost all ceramics. This instrument is beautifully constructed that caters from enthusiastic students to learning and understanding the thermo-physical measurement of materials in the laboratory, to mature scientists wishing to characterize their novel materials. The Kapton coated double spiral Ni sensor is robust yet flexible to ensure efficient contact between the surfaces. The short measurement time enables multiple measurements within minutes and accurate values of thermal conductivity and thermal diffusivity can be obtained. Overall, great experience. Thank you C-therm!

Pratish R. Rao, Graduate Student, Materials Science/ Mining and Geological, University of Arizona, Tucson

C-Therm has been a pleasure to work with! The TCkit is a great tool in illustrating the fundamentals of heat transfer to my undergraduate students. I am very happy with this kit and would recommend it for others teaching the principles of thermal conductivity.

Dr. Walter Yuen, Santa Clara University

The TCKit offered us an affordable solution for learning more about the thermal conductivity of our sample materials. We were impressed with the service and support provided by C-Therm.

Junho Oh, University of Illinois Urbana-Champaign

Principles of Operation

Transient Plane Source (TPS) Technique

The C-Therm TCkit, configured with the Transient Plane Source (TPS) technique, enables the characterization of thermal conductivity and diffusivity of materials. It employs a two-sided sensor, and the user iteratively develops the timing and power parameters. Intended for rough and heterogeneous materials that are not well-suited to a single-sided test method, this configuration allows researchers the maximum versatility in test parameters and experimental design. Variations of this technique, with a bridge circuit, are offered in accordance to ISO 22007.


(1) Power is applied to the sensor's spiral heating element, providing a small amount of heat. This results in a rise in temperature at the interface between the sensor and the sample, which induces a voltage change across the sensor element.

(2) The results from the initial scouting run are used to estimate test time, power level, and ideal sensor size. The experiment is run with the new parameters. This may need to be repeated until the correct parameters are identified. Guidance is provided in the ISO 22007-2.2.

(3) The test result is a plot of temperature vs time.

(4) The results are analyzed with an iterative solving procedure to generate thermal property data such as thermal diffusivity and thermal conductivity.

Sensor Specifications

Ultimate Experimental Control

With complete control over power and timing parameters, extensive experimental control is at your fingertips.

Versatile Thermal Conductivity Testing


FLEX Sensor Testing Pyrex

Simple sample testing setup utilizing on of the provided stainless steel reference material as a weight to improve contact with the sensor.

accuracy of thermal conductivity

Repeatable & Accurate

With demonstrated accuracy better than 5% and repeatability better than 2% in the range of 0.03 to 80 W/mK, the TCkit allows characterization of a wide range of solid samples.

Proprietary Software

C-Therm’s proprietary measurement and analysis software TECAS™ enables users to intuitively setup analysis, with post processing of data via an easy and visual platform. Running on Windows 10, direct export to CSV file allows for simple indexing of results. 

Thermal Conductivity Software

Application Notes

A Review on Thermal Properties of Epoxy Composites

Heat dissipations in electronic devices have become a challenge and area of research for thermal management. Epoxy-based thermal interface materials are used to improve the heat transfer in electronic devices.

Learn how researchers use the Transient Plane Source Technique to further their investigation.


Measurement of Thermal Conductivity of Granular Media by the TPS Technique

To successfully realise industrial applications handling granular media, especially those involving heating and cooling processes, the temperature fields must be properly evaluated according to the accurate thermal properties of the media. 

Check out this analysis of the effective thermal conductivity with the Transient Plane Source Technique.


Understanding the Thermal Conductivity of 3D Printed Polymer Composites

The work presented here addresses thermally conductive polymer matrix composites (specifically, graphite, carbon fiber, and silver in an acrylonitrile butadiene styrene polymer matrix) to identify the effect of composite geometry and print direction on thermal properties. 

Learn more about the Transient Plane Source technique for polymer composites.


Measuring the Thermal Conductivity of Pastes Using C-Therm's TCKit

An application for the TCKit will be highlighted here - thermal pastes and greases. Evaluating the concern of convection error when measuring the thermal conductivity of semi-solid materials using the Transient Plane Source (TPS) Method, a study of three (3) samples was performed.

Find out more about the procedure and findings of this study.



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The TCkit is shipped direct to your door.


Contact Us

For further information, please fill out a contact form or contact us via:
Toll-Free: 1-877-827-7623
International:  +1 (506) 457-1515
Fax: +1 (506) 454-7201