Happy Fathers Day
I'm using a Canary as the device nicely goes IR and the system actively monitors.
What this means is if there is a temperature, humidity, air quality (roughly analogue to smoke detection) or unexpected movement is observed the system "pings me."
You can also mark out areas, so if you have a light from a window issue causing false positives you can manage that issue.
Downside is that it is iPhone/iPad/Android-centric.
The Canary folk recently introduced a smaller useful looking "Canary Flex" but I have the original type.