Super part, works perfectly!

I'm glad God that I have found the switch.
Need him for the extractor.
After the 20 years-no switch was required, and I have everything freshly renovated, is the chimney sweep, the full Depp and demanded that to the window switch back is that the hood is only when the window is open.
There are two possibilities.
An almost priceless vacuum switch, or I pull a cord to the window, which looks very nice. after you have newly renovated.
After a long search I have found this solution.
Super Easy to install and everything needed there!
And if the chimney sweep has taken all this, one can easily reposition again!