Miniature needle type heat flux and temperature sensor

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The NF02 miniature needle type heat flux and temperature sensor is used to perform continuous measurement of temperature and heat fluxes. It is the small version of NF01.


The NF02 has been designed for studies of the energy balance of industrial installations, in particular steel and iron walls. The main component, the actual sensor, is incorporated in a fully stainless steel needle. This sensor can withstand temperatures up to 700 degrees C. The extension cable is made of metal (first part) and PTFE (second part). Sensor output consists of a heat flux signal (microvolt analog signal) and type K thermocouple. NF sensors can be manufactured in such a way that they are fully exchangeable, which is easy for servicing. Also the exact depth of insertion is not critical, which saves installation time.


  • Alternative designs: Hukseflux is specialised in heat flux sensor design. For different applications special models can be constructed.
  • NF02 can be made in different diameters and lengths. See model NF01 for larger versions of NF01. Extended temperature to 700 degrees C. (no spring)


Click on drawing in Gallery for overview of NF02: (1) heat flux sensor & thermocouple location, (2) spring loaded bolt (MF01x1), (3) PTFE cable, (4) metal sheathed cable. All dimensions are in mm.

Suggested use

  • Studies of energy balance of industrial processes

See also

  • See AC100 amplifiers for amplification


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Needle type heat flux and temperature sensor

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