Those things are great but some of them are so sensitive that you get a lot of false alarms. Cat pee will make them go off as well as a oven that has been opened to name a few. I worked in an apartment complex and base housing and those things get to be a pain. Mostly operator error. People like to put them in the kitchen and that is not a good place. But try convincing a no it all military spouse or member that. They know everything.
Gas needs to be treated with respect.
A number of years ago we had a new water heater put in. One of the connections was not sealed properly.
I woke up in the middle of the night with a raging headache and the feeling that something was very wrong. I managed to wake my husband up who figured out what was going on and called the gas company.
Too many “false positives” with CO detectors....they’re like the boy who cried “wolf!”