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Best Smoke / CO Detectors

Buying Guide

How to choose smoke / co detectors

This guide highlights products that meet SmartHomeRange's quality filters and are ranked by product relevance, review strength, rating, pricing, product profile data, and shopper-friendly buying criteria.

Quick Summary

20
Picks
4.7
Top rating
3
Top picks
Kidde Carbon Monoxide Detector, Plug-in with AA Battery Backup, Easy-to-Read Digital Backlit Display, 85 dB Alarm, Rotating Plug, LED Status Light Indicators, 5th Edition, COPD
#1 Pick4.7 rating27,100 reviewsCheck retailer and product details
Kidde Carbon Monoxide Detector, Plug-in with AA Battery Backup, Easy-to-Read Digital Backlit Display, 85 dB Alarm, Rotating Plug, LED Status Light Indicators, 5th Edition, COPD

The Kidde Carbon Monoxide Detector offers a straightforward plug-in design with a battery backup, making it a reliable choice for home safety. Its easy-to-read digital display and audible alarm ensure you stay informed about air quality.

Homeowners looking for a reliable carbon monoxide detectorIndividuals wanting a simple plug-in solution
Price
$43.97
Best for
Homeowners looking for a reliable carbon monoxide detector
Routine
Easy
Match score
155
FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3
#2 Pick4.7 rating26,800 reviewsCheck retailer and product details
FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, White, Pack of 3

The First Alert BRK SC9120B-3 offers essential smoke and carbon monoxide detection with the convenience of battery backup. Ideal for homeowners prioritizing safety, this pack of three ensures comprehensive coverage throughout your home.

Homeowners looking for reliable smoke and CO detectionFamilies wanting added safety measures
Price
$123.30
Best for
Homeowners looking for reliable smoke and CO detection
Routine
Easy
Match score
155
Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
#3 Pick4.7 rating19,700 reviewsCheck retailer and product details
Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

The Kidde Carbon Monoxide Detector is a portable, battery-powered alarm that provides essential safety monitoring without the need for complex installation. Ideal for those seeking straightforward, reliable protection against carbon monoxide.

Homeowners looking for a portable CO detectorIndividuals seeking a reliable safety device
Price
$27.94
Best for
Homeowners looking for a portable CO detector
Routine
Easy
Match score
153
Kidde Smoke & Carbon Monoxide Detector, Hardwired, Interconnect Combination Smoke & CO Alarm with Battery Backup, Voice Alert, Pack of 2
#4 Pick4.6 rating11,400 reviewsCheck retailer and product details
Kidde Smoke & Carbon Monoxide Detector, Hardwired, Interconnect Combination Smoke & CO Alarm with Battery Backup, Voice Alert, Pack of 2

The Kidde Smoke & Carbon Monoxide Detector offers reliable hardwired safety with battery backup, making it ideal for homeowners seeking peace of mind against fire and CO hazards.

Homeowners looking for reliable smoke and CO detectionUsers wanting a hardwired solution with battery backup
Price
$209.99
Best for
Homeowners looking for reliable smoke and CO detection
Routine
Moderate
Match score
148
First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White
#5 Pick4.6 rating8,700 reviewsCheck retailer and product details
First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White

The First Alert CO615 is a reliable plug-in carbon monoxide detector with a battery backup, making it a practical choice for ensuring safety in your home.

Homeowners looking for reliable carbon monoxide detectionIndividuals seeking a plug-in solution with battery backup
Price
$39.98
Best for
Homeowners looking for reliable carbon monoxide detection
Routine
Easy
Match score
147
First Alert Smoke Alarm, 10-Year Sealed Battery Detector with Test & Silence Button, SMI110, 1-Pack
#6 Pick4.4 rating8,200 reviewsCheck retailer and product details
First Alert Smoke Alarm, 10-Year Sealed Battery Detector with Test & Silence Button, SMI110, 1-Pack

The First Alert Smoke Alarm offers reliable smoke detection with a long-lasting battery, making it a practical choice for homeowners seeking safety without the hassle of frequent battery changes.

Homeowners looking for a reliable smoke detectorIndividuals wanting a low-maintenance safety device
Price
$24.47
Best for
Homeowners looking for a reliable smoke detector
Routine
Easy
Match score
143
FIRST ALERT BRK SC7010B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 3-Pack
#7 Pick4.6 rating3,600 reviewsCheck retailer and product details
FIRST ALERT BRK SC7010B-3 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 3-Pack

The First Alert BRK SC7010B-3 offers reliable smoke and carbon monoxide detection with a hardwired setup and battery backup, making it a solid choice for enhancing home safety.

Homeowners looking for reliable smoke and CO detectionFamilies wanting added safety features
Price
$172.79
Best for
Homeowners looking for reliable smoke and CO detection
Routine
Easy
Match score
142
X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display, UL 217 & UL 2034 Certified, Standalone Model SC07, 1-Pack
#8 Pick4.5 rating3,500 reviewsCheck retailer and product details
X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display, UL 217 & UL 2034 Certified, Standalone Model SC07, 1-Pack

The X-Sense SC07 is a reliable standalone smoke and carbon monoxide alarm, perfect for homeowners prioritizing safety without the need for complex installations.

Homeowners looking for a reliable smoke and CO detectorIndividuals wanting a standalone safety device
Price
$35.99
Best for
Homeowners looking for a reliable smoke and CO detector
Routine
Easy
Match score
141
FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features
#9 Pick4.7 rating2,000 reviewsCheck retailer and product details
FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features

The First Alert Carbon Monoxide Alarm is a reliable battery-operated detector that provides essential safety for your home. Its compact design and easy installation make it a practical choice for homeowners.

Homeowners looking for a reliable carbon monoxide detectorIndividuals wanting a battery-operated safety device
Price
$23.25
Best for
Homeowners looking for a reliable carbon monoxide detector
Routine
Easy
Match score
141
Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, 3 LED Indicators
#10 Pick4.8 rating1,300 reviewsCheck retailer and product details
Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, 3 LED Indicators

The Kidde Hardwired Carbon Monoxide Detector offers reliable safety with a battery backup feature, making it a great choice for homeowners prioritizing safety. Its interconnectivity with other Kidde devices enhances home safety systems.

Homeowners looking for reliable carbon monoxide detection.Those who prefer hardwired safety devices.
Price
$41.99
Best for
Homeowners looking for reliable carbon monoxide detection.
Routine
Moderate installation required.
Match score
141
Kidde Carbon Monoxide Detector, AA Battery Powered, Portable for Travel or Home, 85 dB Alarm, LED Status Indicators, 3rd Edition
#11 Pick4.8 rating1,300 reviewsCheck retailer and product details
Kidde Carbon Monoxide Detector, AA Battery Powered, Portable for Travel or Home, 85 dB Alarm, LED Status Indicators, 3rd Edition

The Kidde Carbon Monoxide Detector is a portable, battery-powered device ideal for both home and travel use, providing essential safety with an audible alarm and LED indicators.

Travelers needing a portable CO detectorHomeowners looking for a reliable safety device
Price
$23.97
Best for
Travelers needing a portable CO detector
Routine
Easy
Match score
141
First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 6-Pack
#12 Pick4.6 rating2,100 reviewsCheck retailer and product details
First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 6-Pack

The First Alert SMI100-AC smoke alarm offers hardwired installation with battery backup, making it a reliable choice for home safety. Ideal for those looking to enhance their smoke detection system with a dependable product.

Homeowners looking for reliable smoke detectionFamilies wanting added safety features
Price
$103.99
Best for
Homeowners looking for reliable smoke detection
Routine
Moderate
Match score
140
X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, Standalone Model SC01, Single Pack
#13 Pick4.6 rating2,100 reviewsCheck retailer and product details
X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, Standalone Model SC01, Single Pack

The X-Sense Smoke and CO Detector offers a reliable standalone solution for home safety with a long battery life, making it ideal for homeowners seeking peace of mind.

Homeowners looking for reliable smoke and CO detectionIndividuals wanting a standalone safety device
Price
$35.99
Best for
Homeowners looking for reliable smoke and CO detection
Routine
Easy
Match score
140
Kidde Carbon Monoxide Detector, Plug-in Carbon Monoxide Detector with AA Battery Backup, 85 dB Alarm, LED Status Light Indicators, 3rd Edition
#14 Pick4.8 rating961 reviewsCheck retailer and product details
Kidde Carbon Monoxide Detector, Plug-in Carbon Monoxide Detector with AA Battery Backup, 85 dB Alarm, LED Status Light Indicators, 3rd Edition

The Kidde Carbon Monoxide Detector offers a straightforward plug-in solution with battery backup, making it ideal for ensuring safety in your home. Its audible alarm and LED indicators provide clear alerts for carbon monoxide detection.

Homeowners looking for reliable carbon monoxide detectionIndividuals wanting a plug-in solution with battery backup
Price
$31.97
Best for
Homeowners looking for reliable carbon monoxide detection
Routine
Easy
Match score
139
Kidde Smoke Detector & Carbon Monoxide Detector Combo with 10-Year Battery,‎White
#15 Pick4.5 rating2,200 reviewsCheck retailer and product details
Kidde Smoke Detector & Carbon Monoxide Detector Combo with 10-Year Battery,‎White

The Kidde Smoke and Carbon Monoxide Detector Combo offers essential safety features with a long battery life, making it a practical choice for homeowners.

Homeowners looking for reliable smoke and CO detectionIndividuals seeking a battery-operated safety solution
Price
$51.52
Best for
Homeowners looking for reliable smoke and CO detection
Routine
Easy
Match score
138
First Alert BRK Carbon Monoxide Detector, Hardwired Alarm with Battery Backup, CO5120BN, White
#16 Pick4.6 rating1,400 reviewsCheck retailer and product details
First Alert BRK Carbon Monoxide Detector, Hardwired Alarm with Battery Backup, CO5120BN, White

The First Alert BRK Carbon Monoxide Detector offers reliable hardwired detection with a battery backup, making it a solid choice for homeowners prioritizing safety.

Homeowners looking for reliable carbon monoxide detectionThose wanting a hardwired solution with battery backup
Price
$41.99
Best for
Homeowners looking for reliable carbon monoxide detection
Routine
Moderate
Match score
138
Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators, 1 Pack
#17 Pick4.4 rating2,400 reviewsCheck retailer and product details
Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators, 1 Pack

The Kidde Smoke & Carbon Monoxide Detector offers essential safety features in a battery-powered design, making it a practical choice for homeowners seeking reliable protection against smoke and CO.

Homeowners looking for reliable smoke and carbon monoxide detectionIndividuals seeking a battery-powered safety solution
Price
$49.00
Best for
Homeowners looking for reliable smoke and carbon monoxide detection
Routine
Easy
Match score
137
Kidde Carbon Monoxide Detector, 10-Year Battery Powered, Digital Display, LED Status Indicators, 85 dB Alarm, 3rd Edition
#18 Pick4.6 rating1,300 reviewsCheck retailer and product details
Kidde Carbon Monoxide Detector, 10-Year Battery Powered, Digital Display, LED Status Indicators, 85 dB Alarm, 3rd Edition

The Kidde Carbon Monoxide Detector offers essential safety features with a user-friendly design, making it a great choice for homeowners seeking peace of mind.

Homeowners looking for reliable carbon monoxide detectionIndividuals prioritizing battery-operated safety devices
Price
$44.94
Best for
Homeowners looking for reliable carbon monoxide detection
Routine
Easy
Match score
137
First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery , White, 1 Pack
#19 Pick4.4 rating2,100 reviewsCheck retailer and product details
First Alert BRK SCO2B Smoke and Carbon Monoxide (CO) Detector with 9V Battery , White, 1 Pack

The First Alert BRK SCO2B is a dependable battery-powered smoke and carbon monoxide detector, ideal for enhancing home safety without the need for complex installation.

Homeowners looking for a reliable smoke and CO detectorIndividuals wanting a battery-operated safety device
Price
$59.99
Best for
Homeowners looking for a reliable smoke and CO detector
Routine
Easy
Match score
136
Kidde 21010170 10 Year Smoke and Carbon Monoxide Alarm Detector | Photoelectric | Kitchen | Model P3010K-CO
#20 Pick4.5 rating1,600 reviewsCheck retailer and product details
Kidde 21010170 10 Year Smoke and Carbon Monoxide Alarm Detector | Photoelectric | Kitchen | Model P3010K-CO

The Kidde 10 Year Smoke and Carbon Monoxide Alarm is a reliable choice for kitchen safety, featuring a long-lasting battery and advanced sensor technology. Ideal for homeowners seeking peace of mind without the need for complex installation.

Homeowners looking for reliable smoke and CO detectionIndividuals prioritizing kitchen safety
Price
$51.95
Best for
Homeowners looking for reliable smoke and CO detection
Routine
Easy
Match score
136

How we rank these picks

SmartHomeRange prioritizes category relevance, strong rating and review data, pricing, product profile completeness, compatibility, use cases, and buying-fit information. Retailer links may earn affiliate commission.

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