Soil Thermal Conductivity Meter
TLS-300 Pro - Thermtest Instruments
The TLS-300 Pro uses a specially designed 300 mm length needle probe for measuring the thermal conductivity and thermal resistivity of heterogonous soil and materials. The 300 mm needle probe enables a larger volume of penetration, resulting in a better bulk average of thermal conductivity and thermal resistivity in accordance with ASTM D5334 - Standard Test Method for Determination of Thermal Conductivity of Soil and Soft Rock by Thermal Needle Probe Procedure.