To prevent extreme heating after ventilating the room, a delay time after closing the window would be grat. 

Window open detection by T110 sensors can be delayed but window closed detection is missing.

Szenario: Ventilate the room before sleeping and cool it down a bit by open the window. In winter the TRV right below the window cools down an when closing the window the TRV heats up the room at full power. Better let it wait 10 minutes to normalize and then continue heating.

Thank you!