Early identification of mould risk: Used in conjunction with your smartphone/tablet, the testo Smart Probes mould kit is ideal for detecting areas susceptible to mould at an early stage. Use the testo Smart Probes testo 605i and testo 805i to measure ambient temperature, relative humidity and surface temperature. Thanks to the testo Smart App, you can work more easily and efficiently: Evaluate the results of the mould indication according to the traffic light principle (green, yellow, red), save measurement data as a PDF or Excel file at the touch of a button. Measurement data reports can be emailed directly - these contain photos of the affected areas for better illustration.