Best CO Detectors
Updated May 2025
Join the millions that have trusted BuyersGuide.org to help them make smarter buying decisions. Let our independent expert reviews and data-driven shopping recommendations help you find the one that's right for you.
Best CO Detectors
2025 Buyer's GuideUpdated May 2025
Sort by:
1
1
4-in-1 Upgraded Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detect...
Ease of use
Detection ability
Functionality
Readability
Display temperature
Gas detection
2
2
X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display (Standalone Model)
Ease of installation
Functionality
Look
Battery life
Connectivity
3
3
Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digi...
Functionality
Ease of installation
4
5
First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White
Functionality
Ease of installation
Value for money
Safety
6
6
TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Scre...
TOPTES
Functionality
Detection capability
Value for money
Ease of use
Readability
Build quality
7
8
8
X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm Detector with Peak Value Memory, ...
Functionality
Ease of use
Size
Portability
Value for money
Co2 detector
9
10
Our Top Choice
1
1
4-in-1 Upgraded Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detect...
Ease of use
Detection ability
Functionality
Readability
Display temperature
Gas detection
Expert Analysis
Our team of experts highlights useful information so you can easily compare products to find the one that's right for you.
Award-Winning Tech
Our technology analyzes thousands of purchase trends to bring you the top product recommendations.
1,000,000+ shoppers use Buyer's Guide every week to find the best products and services online.
Learn more about our rankings.
Helping millions of users make smarter purchases online.
