First Alert Hardwire Combination Smoke & Carbon Monoxide Alarm with Voice

Price: $172.99
(as of Sep 22, 2026 14:49:15 UTC – Details)


Be alerted to the type of danger and its location in your home with the First Alert SMCO100V-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup and Voice & Location Alerts. Easily install using the quick connect plug. Plus interconnect compatible alarms to create a whole home alarm system to help provide an early warning. Also the alarm is also equipped with First Alert’s Precision Detection advanced sensing technology and meets new industry standards.
First Alerts Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
Voice & location alerts tell you what the danger is and its location to help you escape safely
Through early warning interconnect, when one alarm sounds, all compatible
Battery backup provides continuous protection during power outages
Provides reliable 2-in-1 protection against both smoke and carbon monoxide
Customers find the smoke and carbon monoxide alarm straightforward to install and appreciate its compatibility with existing wired connections. However, the alarm receives mixed feedback regarding its reliability, with some reporting repeated false alarms. Moreover, customers disagree on the product’s value, with some considering it a worthwhile investment while others say it’s a complete waste of money. Additionally, the alarm’s loudness is a concern, with customers describing it as LOUD, and customers disagree on the battery life, with some noting the need for new batteries.