FluxTeq is a relatively new and innovative heat flux sensor / transducer manufacturer located in the United States. Our PHFS thin-film heat flux sensor product line is extremely cost effective compared to any other manufacturers worldwide. The PHFS heat flux sensor product line utilized a temperature differential thermopile that was designed to be very thin to minimize thermal resistance of the sensor itself while still maintaining a high sensitivity. The size, shape and design of the PHFS sensors can be easily customized to fit your specific application. Our PHFS-09e sensor was designed with a large area to measure & characterize heat flux through a bigger space and also features very high sensitivities that are ideal for low heat flux applications such as building envelope studies. The PHFS heat flux sensors can be used with our inexpensive data acquisition and logging systems to measure signals from the sensors and record the data to a computer or memory card. We sell a complete packaged R-value / U-value measurement system that can determine the thermal resistance of a material by measuring heat flux and temperature differential across the material simultaneously. Recently, FluxTeq introduced a new heat flux sensor product, the HTHFS-01 is a heat flux sensor that can be used in extremely harsh environments withstanding temperatures up to 1000 degrees C.