hey guys, planning on fitting a house with xiaomi smart home devices; primarily some gateway hubs and door/window sensors to make a rudementary alarm system

but since unifi has recently been having connectivity issues, i was wondering if these devices can still function without internet connectivity? (operating strictly on LAN)

my most concerned use case is if i arm the alarm system using xiaomi home products, and the internet goes out; will i be able to disarm the alarm? and also, will the alarm trigger if there is no internet connection?

hope some of you guys can help me out, thanks!

yeah, most likely will have to go with one of these
i have heard that most zigbee connected devices will still be functional even without internet connectivity, but its probably best to be on the safer side.