When should I replace my hard-wired smoke detector? If it’s no longer working properly, replace it ASAP. Otherwise, “ replace your smoke detectors every 10 years,” Nikolin says.

Q: I changed the batteries in my smoke detector, but when I tested it afterward nothing happened. The batteries are new, but the smoke detector is very old. I know that it’s hard-wired into my ...

For hard-wired smoke detectors, with the power off at the breaker, wire the included wiring harness into your system. It needs to tie into the wires that you pulled through the bracket during the ...

Hard-wired smoke detectors cost as little as $9 per unit, as opposed to $15 per unit for battery-powered smoke detectors. This lower per-unit cost can help mitigate the high overall installation cost.

Q: About 10 years ago, I replaced the original wired smoke alarms in my home with wired dual sensors that use both photoelectric and ionization technology. Because I’ve read that ...

There are multiple reasons to convert your home to hard-wired smoke detectors. One of the most basic reasons people convert is that some battery-powered smoke detectors can be hard to reach.

Many hard-wired smoke detectors have a backup battery and will emit a single beep when the battery is low and needs to be replaced. How often should I replace my smoke detectors? Most smoke ...

Battery-powered smoke detectors easily detach from a wall plate so you can access a panel on the back to change the battery. Wired smoke detectors tend to cost more, but not too much.