Upgrade your home safety with the First Alert SC5 Battery‑Operated Smart Smoke & Carbon Monoxide Alarm — a reliable, easy-to-install 2‑in‑1 detector that protects against both smoke and carbon monoxide without hardwiring.
Powered by six CR123A lithium batteries (3V each), this alarm offers around-the-clock protection and works seamlessly even during power outages, thanks to its integrated battery system. It features dual sensor technology — electrochemical CO detection and photoelectric smoke sensing — for high sensitivity to different fire types while minimizing false alarms with First Alert’s Precision Detection™ technology.
With voice alerts that clearly announce the danger type and location (“Warning, Smoke in Basement”), and wireless interconnectivity, you can install multiple SC5 units throughout your home—when one alarm triggers, all interconnected units sound simultaneously. It also works with Google’s Nest Protect base plates and integrates fully with the Google Home app for mobile notifications and remote status checks.
Precision detection helps reduce nuisance alarms, and the unit provides in-app and audible end-of-life and low-battery alerts to ensure readiness at all times. With a loud 85 dB alarm at 10 feet, and a compact design of approximately 5.75" square and 1.6" thick, the SC5 combines powerful performance with simple, battery-operated convenience.
Backed by First Alert’s reputation and a 10-year limited warranty, the SC5 smart alarm is an ideal smart upgrade or Nest Protect replacement—for improved safety, clarity, and peace of mind
Upgrade your home safety with the First Alert SC5 Battery‑Operated Smart Smoke & Carbon Monoxide Alarm — a reliable, easy-to-install 2‑in‑1 detector that protects against both smoke and carbon monoxide without hardwiring.
Powered by six CR123A lithium batteries (3V each), this alarm offers around-the-clock protection and works seamlessly even during power outages, thanks to its integrated battery system. It features dual sensor technology — electrochemical CO detection and photoelectric smoke sensing — for high sensitivity to different fire types while minimizing false alarms with First Alert’s Precision Detection™ technology.
With voice alerts that clearly announce the danger type and location (“Warning, Smoke in Basement”), and wireless interconnectivity, you can install multiple SC5 units throughout your home—when one alarm triggers, all interconnected units sound simultaneously. It also works with Google’s Nest Protect base plates and integrates fully with the Google Home app for mobile notifications and remote status checks.
Precision detection helps reduce nuisance alarms, and the unit provides in-app and audible end-of-life and low-battery alerts to ensure readiness at all times. With a loud 85 dB alarm at 10 feet, and a compact design of approximately 5.75" square and 1.6" thick, the SC5 combines powerful performance with simple, battery-operated convenience.
Backed by First Alert’s reputation and a 10-year limited warranty, the SC5 smart alarm is an ideal smart upgrade or Nest Protect replacement—for improved safety, clarity, and peace of mind
