FODY E42 sensor for Tempus Pro E41 Thermo-hgyro sensor 868 MHz wireless

[Noop]

Hi,

I bought some of these temperature/hygro sensors: https://www.conrad.com/p/fody-e42-fur-tempus-pro-e41-thermo-hgyro-sensor-868-mhz-wireless-1380343
Now I want to recieve their radio signal and constantly read their values.
Unfortunately the Fody company no longer exists and I cannot find more detailed information about the protocoll or modulation on the internet.

I uploaded some pictures of the disassembled sensor to a post in the fhem forum: https://forum.fhem.de/index.php/topic,124165.0.html

Then in the forum here I found one article about another Fody product: https://forum.mysensors.org/topic/6645/fody-weather-station-wind-sensor?_=1637228125006.
Seems that @flopp and @Stephen205 are using them, but through a direct connection, not via radio, right?
Did you (or anybody else) get the chance to discover / decode the radio signal? Or do you have some idea / tip / help for me?

Thank you :-)