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TNS02 thermal needle set

Thermal needle set for thermal resistivity / conductivity measurement

TNS02 efficiently and accurately performs on-site (field) as well as laboratory measurements of the thermal conductivity and thermal resistivity of soils. The system is a combination of our FTN02 and MTN02 systems. Measurement with TNS02 complies with ASTM D5334 and IEEE 442 standards. It is designed for optimal flexibility. TNS02 includes two different needles; one on a short insertion tool for use in the laboratory, the other mounted on a long lance for use on-site. The control and readout unit, CRU02, is shared between the two (on-site and laboratory) needle models.

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TNS02 essentially consists of a combination of FTN02 and MTN02 components: the insertion tool IT03 and needle TP07 of MTN02 are added to FTN02.

More Info

System type Thermal needle Transport case Insertion tool Added
FTN02 TP09 TC01 LN02 CRU02 + Access.
MTN02 TP07 TC02 IT03 CRU02 + Access.
TNS02 TP07 & TP09 TC01 LN02 & IT03 CRU02 + Access.


Measurand temperature
Measurement range 0.1 to 6 W/(m·K) (all common soils)
Rated operating temperature range 0 to + 50 °C
Measurement method Absolute measurement per ASTM D5334-14 and IEEE 442-1981 (03)
Further specifications See FTN02 and MTN02


Suggested use

  • route surveys, on-site (field) measurements
  • laboratory analysis of soil specimens
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