Plug-In Carbon Monoxide Alarm with Battery Backup
Best reliable safety solution for homeowners seeking continuous carbon monoxide protection.
Ensure your home's safety with the First Alert Plug-In Carbon Monoxide Alarm. This essential device provides continuous monitoring for dangerous CO levels, offering peace of mind. It conveniently plugs into a standard 120V outlet and features a battery backup to ensure protection even during power outages. A loud 85-decibel alarm alerts you to any detected CO, while a single button allows for easy testing and silencing. The integrated end-of-life timer serves as a reminder for timely replacement, guaranteeing reliable performance.
$32.99
Owner Satisfaction
4.7
/ 5
Category Rank
1
/ 34
Best Carbon Monoxide Detectors
Price vs Category Average
-53%
Below average
Power Source
120
/ V AC outlet with battery backup
Who it's for
- Homeowners wanting reliable, low-maintenance safety monitoring
- Safety-conscious residents needing protection during power outages
- Renters or travelers requiring quick, tool-free setup
Who should skip it
- Users with limited electrical outlets in high-traffic areas
- Safety experts needing precise placement for optimal air circulation
- Budget-conscious shoppers seeking long-term, permanent hardware solutions
Performance breakdown
Reliability
Electrochemical sensor technology provides consistent, high-precision detection of carbon monoxide.
Installation Ease
Simple plug-in design eliminates complex wiring or professional installation requirements.
Power Redundancy
Integrated battery backup ensures continuous protection during unexpected power grid failures.
Alert Effectiveness
The 85-decibel alarm provides a piercing, unmistakable warning for household occupants.
Maintenance Simplicity
Single-button interface makes routine testing and silencing effortless for any user.
Lifecycle Management
Automated end-of-life timer removes guesswork regarding the device's operational lifespan.
Key Specs
Power Source
120V AC outlet with battery backup
Sensor Type
Electrochemical carbon monoxide sensor
Alarm Sound Level
85 decibels
Operation
Plug-in installation
Control
Single button for test/silence
Maintenance
Features an end-of-life timer
Interconnectivity Type
Standalone
Mounting Type
Plug-in
Features
- Continuous CO monitoring for safety
- Battery backup during power outages
- Loud 85 dB alarm alert
- Easy one-button test and silence
- End-of-life timer for replacement
- Plugs into standard outlet
What customers say
This carbon monoxide alarm is highly valued for its exceptional reliability and the peace of mind it provides. The trusted First Alert brand and battery backup ensure continuous protection, even during power outages. Setup is remarkably simple, requiring only a standard wall outlet. Users appreciate the clear digital display for immediate status feedback, boosting confidence in the device. While the unit's size can occasionally block an adjacent outlet, and an end-of-life chirp is noted, these minor issues are overshadowed by the loud, effective alarm. Confidence remains high in this critical safety investment.
Know before you buy
No, this unit is designed for simple plug-in installation. It fits directly into any standard 120V wall outlet, making it easy to set up without professional assistance.
Yes. The device features a built-in battery backup that ensures continuous carbon monoxide monitoring even during a power outage.
The alarm includes an integrated end-of-life timer. This feature will signal when the sensor has reached the end of its functional lifespan, ensuring you always have reliable protection.
Yes, the device features a single-button control that allows you to easily test the unit or silence the alarm if it is triggered by a non-emergency situation.
No, this is a dedicated carbon monoxide detector. It is designed specifically to monitor for CO levels and will not alert you to smoke or fire.
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$33