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HTHFS-01 Extremely High Temperature Heat Flux Sensor

The HTHFS-01 is the first heat flux sensor on the market that is capable of withstanding temperatures up to     1000 C (1800 F).  The HTHFS's thermopile is constructed entirely of robust materials and placed within a high temperature inconel housing. Inconel sheathing also protects the sensor's measurement leads against extreme temperatures that is experienced in harsh testing environments.


Lead times may vary based on availability

                         for more information about the HTHFS-01 including academic publications as well as for placing orders.


Inquire about large quantity order pricing. Large volume and university discounts are also available.

Current Applications

 - R&D in high temperature conditions

 - Testing of protective clothing within fires

 - Metallurgy research and control of quenching & heat

   treatment processes

HTHFS high-temp heat flux sensor FluxTeq
HTHFS material construction

Sensor Type:                  Differential-Temperature Thermopile

Nominal Sensitivity:      Approx. 300 µV/(W/cm^2)

Sensor Thickness (t):     3.175 mm

Max Temperature:        Up to 1000 degrees C

Thermocouple Type:    Type-K Thermocouple

Sensing Area Size:        9.8 mm x 5.7 mm


* Temperature range may be larger than specified.


Standard sensor orders come with heat flux and thermocouple wire measurement leads of 3 ft

in length. If your application requires longer wire leads then we can provide them at a small

additional cost per foot. 

HTHFS-01 Heat Flux Sensor Specifications




Gifford, A. R., Hubble, D. O., Pullins, C. A., Huxtable, S. T., and Diller T. E., ”A Durable Heat Flux Sensor for Extreme Temperature and Heat Flux Environments,” AIAA Journal of Thermophysics and Heat Transfer, Vol. 24, 2010, pp. 69-76.

Hubble, D. O. and Diller, T. E., “A Hybrid Method for Measuring Heat Flux,” ASME Journal of Heat Transfer, Vol. 132, 2010, 031602, 8 pages.

Pullins, C. A. and Diller, T. E., "Direct Measurement of Hot-Wall Heat Flux" Journal of Thermophysics and Heat Transfer, Vol. 26, 2012, pp. 430-438.

Vega, T., Lattimer, B. and Diller, T. E., “Fire Thermal Boundary Condition Measurement using a Hybrid Heat Flux,”Fire Safety Journal, Vol. 61, 2013, pp. 127-137.

Vega, T., Lattimer, B. Y., and Diller, T. E., “Temperature Predictions using Hybrid Heat Flux Gage Measurements,”Fire Technology, 2014, 10.1007/s10694-013-0381-2, 24 pages.

Vega, T., Wasson, R.A., Lattimer, B.Y., and Diller, T.E., “Partitioning Radiative and Convective Heat Flux,” Int. J. Heat Mass Transfer, Vol. 84, 2015, pp. 827-838.  

Wasson, R., Nahid, M. N., Lattimer, B. Y., and Diller, T. E., "Influence of a Ceiling on Fire Plume Velocity and Temperature," Fire Technology, Oct., 2015, pp. 1-24.


Please email for any purchases. Include your shipping address and the number of sensors and types you would like purchase so that we can estimate the shipping and total costs.



Feel free to include any information about your specific application so that we can provide you with the most appropriate heat flux sensor product.


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