With the smart Testo 872s mold set, mold risk areas in buildings are quickly and easily identified. Using the free thermo-hygrometer Testo 605i, room parameters are transmitted to the camera via Bluetooth, and mold-prone areas are displayed in orange or red on the screen. With a thermal sensitivity of 50 mK, user-friendly operation, and professional measurement performance of the Testo 872s, weaknesses such as thermal bridges in the building are quickly uncovered and visualized.