
For measuring and logging humidity we recommend the professional devices from testo, because we have found significant deviations in many standard hygrometers, which as a rule cannot record data either. We cover the important topic of humidity in detail in our blog posts. In our experience the ‘testo 174 H – mini data logger for temperature and humidity’ (MSRP as of 2025: approx. EUR 118.00) is very well suited for this. You can find details on these products on the manufacturer’s website and buy them there.