That's the worst!! When everything seems to be operating properly.
Reasons similar to that led me to put a security camera in my tent so I can see what's going on 24hrs. Except I run it on the same timer as the lights, just to be sure the ir doesnt affect anything.
It allows me to make sure timers are running in unison as well as alerted me that I was starting to flood from a runaway blumat!
Nice, I’d be nervous something like that would happen to me if I used those blumat things...!!!...