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 in-home smoke ...

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.

With this in mind, a hard-wired smoke detector with a battery backup is the most reliable. Smart Features. There are many different smart features available for smoke and carbon monoxide detectors.

All smoke detectors were replaced with this brand of FireX wired detector (i4618A) in 2017. The detectors were purchased at Home Depot and were manufactured in 2015-2016.

The most important update to the smoke alarm safety standards (known as the UL 217, 8th edition), which went into effect in 2024, means that new alarms are better at detecting both smoldering and ...

First Alert’s new smart smoke alarm is meant to be a Google Nest Protect replacement. Google has discontinued its smart smoke alarm and partnered with First Alert on a new $129 detector that ...

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 ...