No one tells you what those different beeps or on-off lights on your smoke detector mean. Here's what you need to know.

Small flashing red lights and chirping sounds every 30 to 60 seconds can mean it’s time to change a smoke alarm’s battery. Some models may have a green flashing light or announce “low battery,” so ...

When replacing batteries, opt for lithium batteries, which typically last up to 10 years, matching the lifespan of most smoke detectors. It’s essential to check the manufacturing date on the unit. If ...

Smoke detectors have a lifespan of seven to ten years. After this period, their internal sensors deteriorate, leading to ...

CHECK YOUR ALARMS  When was the last time you changed your smoke alarm battery? The end of daylight saving time is a good ...