Smoke detectors have a reputation for choosing the quietest part of the night to make themselves heard, and that familiar chirp has startled countless people out of deep sleep. At first, it feels ...

Your smoke detector’s beeping is supposed to protect you, not confuse you. Yet there are moments when a chirping alarm is a warning that the device itself is no longer trustworthy, even if it still ...

When you move into or buy a new home, no one hands you a guide to how the smoke detectors work. They "chirp," which really means shriek loudly, and you occasionally have to put new batteries in them.