I’d like to have a kind of “watchdog” to survey my mistake, sometime happening in node red…
I’d like to trigger an alert (or anything else) when two lights are ON since 15 minutes by example.
Few days ago I tried to do an automation trick from my work in node red, and I leave it with no “entity.id” on one trigger… As a result my 22 lights where on for 6 hours 
So It would be nice to monitor if the cellar light and the attic light are ON since 15 minutes, that probably a mistake…
What approach would you use ? To be honnest I have no idea to do this…
Thanks