So for those of us who use devices which may be offline more than online, its quite annoying trying to use the app when the Device is Offline notification pops up ever 5 seconds or so (more often with more deepsleep sensors).
It would be awesome to have a selection box when adding a device which allows the notification to be disabled. I imagine it is an app side development as the background check can still happen, but just not let you constantly know about it failing.
Cheers