
Nuki Smart Lock 2.0 CH

Nuki Smart Lock 2.0 CH
Has anyone retrofitted the priority function themselves or does anyone know what is needed for this? Unfortunately, my flat door does not have this function, but I would like to retrofit it myself and am also authorised to do so. Do I simply need a new double cylinder (KABA Star) which supports this function? However, I have to keep the existing lock, i.e. I don't want to use any new/additional keys, as I live in a block of flats. It would be nice if someone could tell me how I can convert this as cheaply as possible and on my own.