Combination Smoke Carbon Monoxide Detectors of 2025
Best Choice1
Clicked 23 times in the last monthX-SenseX-Sense AC Hardwired Combination Smoke and Carbon Monoxide Detector, Hardwired Interconnected Smoke and CO Detector Alarm with Replaceable Battery Backup, XP06, 6-Pack
Why we love it
10-year lifespan ensures long-term safety.
Interconnected alarms for comprehensive coverage.
Easy control with a single button.
9.9Exceptional
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Value for Money2
X-Sense15% OffX-Sense Smart Smoke Detector Carbon Monoxide Detector Combo, Battery-Operated (Not AC Hardwired) Interconnected Combination Smoke Carbon Monoxide Detector, 5 Detectors with 1 Base Station, SC07-MR51
Why we love it
Easy app-based control and notifications.
Long-lasting 10-year battery life.
Quick installation and setup process.
9.8Exceptional
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3
FIRST ALERTFirst Alert SMCO210, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design, 1-Pack
Main highlights- Slim profile design is half the depth of a standard alarm
- Provides reliable 2-in-1 protection against both smoke and carbon monoxide in an easy to install alarm
- First Alert's 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.
- End-of-life warning lets you know when it’s time to replace the alarm
- 10-Year sealed battery eliminates battery replacements and low battery chirps for the life of the alarm
9.6Exceptional
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4
FIRST ALERT23% OffFirst Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm, 1-Pack
Main highlights- Test/silence button for efficient testing to ensure alarm is working properly
- Provides reliable 2-in-1 protection against both smoke and carbon monoxide
- First Alert's 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
- End-of-life warning lets you know when it’s time to replace the alarm
- Battery-operated alarm allows for easy installation and maintenance
9.5Excellent
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5
Lecoolife4 Pack Combination Smoke and Carbon Monoxide Detector Battery Operated, Travel Portable Photoelectric Fire&Co Alarm for Home, Kitchen
9.9 Precision9.9 Noise level9.5 clearly writtenWhy we love it
Detects smoke and carbon monoxide.
Easy installation, no electrician needed.
Includes batteries for immediate use.
9.4Excellent
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6
KiddeKidde Smoke & Carbon Monoxide Detector, 10-Year Battery Powered, LED Warning Light Indicators, 4 Pack
Main highlights- TEST & HUSH BUTTON: Makes it easy to test the 5-inch combination detector and silence false alarms, should they occur.
- SELF-TESTING ALARM: Internal components ensure alarm is always operating as expected. Not a substitute for a manual push test, perform a button test once per week to verify alarm operation.
- NEVER-CHANGE 10-YEAR BATTERY: No low battery chirps or battery changes for 10 years & saves up to $40 over the life of the detector. (10-yr limited warranty on alarm, not a battery performance claim.)
- ENHANCED SENSING TECHNOLOGY: Reduces false smoke alarms often caused by cooking. Comprehensively tested to meet the latest UL standards, meets UL 217 9th Edition, UL 2034 4th Edition, & FCC standards.
- EASY INSTALLATION: No wiring needed, simply mount the bracket onto the ceiling and twist & click the 5-inch smoke & CO alarm into the bracket.
- 3 LED NOTIFICATIONS: LED lights indicate alarm status, green = normal operation, amber = operating error, red = smoke or carbon monoxide detected & a loud 85-decibel alarm will sound.
- 2-IN-1 DETECTION: Alerts you to both smoke & carbon monoxide (CO) using a single, cost-effective device.
- 10-YEAR LIMITED WARRANTY: Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that alarms should be replaced.
9.2Excellent
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7
AEGISLINK19% OffAEGISLINK Smoke Carbon Monoxide Detector, Interlinked Combination Smoke CO Alarm, Battery Powered, Wireless Interconnected, Digital Display, SC-RF220, 6-Pack
9.7 Easy installation9.5 worth the money8.0 clearly writtenWhy we love it
Dual protection against smoke and CO.
Interlinked alarms enhance home safety.
Easy installation and clear instructions.
9.1Excellent
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8
X-Sense23% OffX-Sense Combination Smoke and Carbon Monoxide Detector with Voice Location, Interconnected Smoke Detector Carbon Monoxide Detector Combo with Base Station (Included), Model XP0A-MR31
Why we love it
Voice alerts specify danger location.
Integrated smoke and CO detection.
Easy smartphone connectivity.
9.0Excellent
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9
FIRST ALERTFirst Alert SMICO105-AC, Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with 10-Year Battery Backup, 3-Pack
Why we love it
Reduces false alarms during cooking.
Provides protection during power outages.
Easy installation with no rewiring needed.
8.9Very Good
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10
X-SenseX-Sense Hardwired Combination Smoke and Carbon Monoxide Detector, Hardwired Interconnected Smoke and CO Detector Alarm with Replaceable Battery Backup, XP04, 3-Pack
Why we love it
Reliable during power outages.
Easy to install.
Comprehensive home coverage.
8.8Very Good
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