With the existing temperature transmitter of the starter set, only limited history data can be viewed (table, but no graphical representations). This is completely sufficient for monitoring instantaneous values. If no historical data is needed for the hygro data, a transmitter, e.g. Galaxus art. no. 6215087, is sufficient.
However, if historical data is required, a transmitter Galaxus art. no. 6332706 is necessary. With this transmitter, the temperature and humidity data can also be displayed in the app as graphics for up to one week. The transmitter is also compatible with the browser-based platform Observer from TFA. More at https://www.wh-observer.de .

@Galaxus, Product Support TFA: Desirable would also be the ʺWeatherHub-Observer Starter-Setʺ, TFA Cat.No. 31.4012 Gateway + Thermo-Hygro-Transmitter from TFA in their offer!