First Alert Onelink Smoke + CO Alarm
Best smart safety upgrade for tech-savvy homeowners seeking dual-threat protection.
This hardwired unit upgrades your home’s safety by pushing real-time alerts directly to your phone. While the installation requires a bit more effort than a battery-powered alternative, the peace of mind provided by constant, connected monitoring makes it an essential upgrade for any modern household.
$130.95
Who it's for
- Travelers needing constant peace of mind while away from home
- Homeowners prioritizing continuous protection during power outages
- Families needing clear, immediate guidance during emergency situations
Who should skip it
- Renters or homeowners lacking existing hardwired electrical infrastructure
- Budget-conscious shoppers seeking affordable basic safety solutions
- Users without reliable home internet connectivity
Performance breakdown
Dual-Sensor Reliability
Combines smoke and carbon monoxide detection for comprehensive home safety coverage.
Smart Connectivity
Instant mobile alerts keep you informed even when away from home.
Power Dependability
Hardwired connection ensures consistent power without frequent battery replacement concerns.
Ecosystem Integration
Seamlessly syncs with the Onelink platform for a unified smart home.
Alert Clarity
Voice notifications provide immediate, actionable warnings during emergency situations.
Maintenance Simplicity
Integrated test button makes routine safety checks quick and effortless.
Key Specs
Power Source
Hardwired
Wireless Protocol
Onelink
Sensor Type
Smoke & Carbon Monoxide
Condition
New (Open Box)
Category
Electronics > Smart Home & Security > Home surveillance
Smart Features
Yes
Wi-Fi Enabled
Yes
Carbon Monoxide Detection
Yes
Know before you buy
Still have a question?
Ask Metto anything about the First Alert Onelink Smoke + CO Alarm before you decide.