To determine the U-value, the probe measures three key temperatures:
- Outer temperature – Measured wirelessly using a radio-transmitting probe, allowing readings to be taken with the window closed.
- Inner wall surface temperature – Three wired sensors attached to the wall using modelling clay for secure placement.
- Indoor air temperature – Measured by a sensor on the probe plug.
The collected temperature data is transferred to the testo 635, which automatically calculates and displays the U-value. This innovative patented U-value probe ensures quick, accurate, and hassle-free energy efficiency assessments.
With its wireless outdoor measurement, intuitive setup, and seamless integration with testo 635, this probe is the ideal solution for professionals looking to optimise insulation performance, reduce energy costs, and improve building sustainability.