First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm

Price: $128.85
(as of Oct 14, 2026 16:06:20 UTC – Details)


The fire safety you trust is now connected and compatible. Add smart fire safety alerts to your home with the First Alert SC5 Hardwire Smart Smoke and Carbon Monoxide (CO) Alarm. This 2-in-1 device elevates your home’s fire and CO safety whether home or away.
Compatible with Google’s Nest Protect Alarm
Sends alerts to your phone if smoke and CO are detected through the First Alert app
Interconnect so when one alarm sounds, all compatible alarms in the home sound
Battery backup provides continuous protection during power outages
Voice alerts with Heads-Up warning tells you the type and location of danger in your home
Equipped with Precision Detection Technology to help reduce nuisance alarms and provide an early warning
Quick Connect Plug allows for easy installation and replacements with no need to rewire
The date shown on the product is the Manufacture Date, which identifies when the product was produced
Customers find the smoke alarm easy to install with step-by-step instructions and appreciate its integration with Google Home. However, the product receives negative feedback for its reliability, with customers reporting constant false alarms and poor quality. Moreover, the alarm accuracy is concerning as it creates panic in the house, and customers find it not worth the money. Additionally, the silencing feature is problematic, with customers unable to silence it through the app.