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.


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Nominal sensitivity : depends on exact design
Temperature dependence : depends on exact design
Working range (typical) : 0.05 to 50 kWm-2
Temperature range
(sensor, metal sheathed cable, spring loaded bolt) : -55 to +450 °C
Temperature range
(PTFE cable) : 55 to +260 °C
Heat flux output signal : analog microvolts
Temperature output signal : thermocouple type K
Power requirements : no power required
Optional : sensor length and diameter, extended cable, cables with alternative colour codes, extended temperature to 700 °C
Protection sensor/coupling/cable : IP 65 / 64 / 64
CE certification : NF02 is CE certified
Ordering code : NF02/L1/L2/L3 L1 to L3 in mm
Standard : NF02/30/100/2500
Temperature sensor : thermocouple K, ANSI MC96.1-1982