KNX Door Window Sensor

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Hello,

I’m using homey since three years with my knx devices, since that time I’m missing a window/door sensor (open/close) I asked they people from homey several times - no Reaktion - no they wrote - ask the Comunity. Here I am - can someone help my. I want to se if there is a window open ore closed - I have contacts in every window - I have them in my Knx system but not in may homey - help !

kind regards Steffen