Now that most of the work has been done, it’s time to put in finishing touches. And fire alarms are an essential part of general security. So I added the first two fire alarms, on in the Master bedroom and one in the Living.

They talk to each other and make a distinction between Carbon Monoxide and Fire. And they also literally talk; when the button is pressed, a female voice announces it will be loud, and gives you an option to cancel the test, before a really loud beep sounds.