Carbon monoxide (CO) is a silent, invisible threat that claims hundreds of lives each year and sends thousands more to the emergency room. As a reporter whos covered home safety for over a decade, I cant overstate the importance of installing thebest carbon monoxide detectorsin your home.
These devices are your firstand sometimes onlyline of defense against a gas that has no color, taste, or smell. Whether you have a gas furnace, use a fireplace, or simply want peace of mind, a reliable CO detector is essential.
In 2025, the market is packed with advanced options, from smart detectors that send alerts to your phone to combination units that also detect smoke. Choosing the right model can be overwhelming, but with the right information, you can make a decision that keeps your family safe. In this guide, Ill break down thetop 7 carbon monoxide detectors available on Amazon, highlighting what makes each one stand out. Ill also share expert tips for choosing the right detector for your unique needs, ensuring youre well-informed and confident in your purchase.
How to Choose the Best Carbon Monoxide Detector
When it comes tohome safety, not all CO detectors are created equal. Heres what I look for, based on years of research and interviews with safety experts:
- Power Source: Battery-powered models offer flexibility and work during outages, while plug-in units are easy to install. Hardwired detectors are best for new construction or major renovations.
- Sensor Technology: Opt for electrochemical sensorstheyre the gold standard for accuracy and reliability.
- Digital Display: A real-time display of CO levels helps you monitor your homes air quality and catch issues before they become emergencies.
- Interconnectivity: In larger homes, interconnected detectors ensure that when one alarm sounds, all units alert you.
- Certifications: Always choose detectors certified by organizations like Underwriters Laboratories (UL) for proven safety and performance.
- Additional Features: Consider smart alerts, peak level memory, end-of-life indicators, and combination smoke/CO detection for added peace of mind.
With these criteria in mind, lets dive into the top picks for 2025.
7 Best Carbon Monoxide Detectors for 2025
01. Kidde Smoke & Carbon Monoxide Detector
TheKidde Smoke & Carbon Monoxide Detectorstands out as the best overall option for homeowners seeking dual protection. This battery-powered device combines ionization smoke detection with advanced CO sensing, ensuring youre alerted to both fire and gas threats. The 85-decibel alarm is loud enough to wake even the deepest sleepers, and the units low battery notification ensures youre never caught off guard.
Installation is a breezemost users report being up and running in minutes. While some have noted occasional false alarms, especially at night, the peace of mind offered by this dual-function detector is hard to beat. Its reliability, ease of use, and comprehensive protection make it a top choice for families who want robust safety without hassle.
02. Ecoey Carbon Monoxide Detector
If youre looking for thebest value, theEcoey Carbon Monoxide Detectordelivers reliable protection at an affordable price. This battery-operated unit boasts a durable design with a 7-year lifespan, making it a smart investment for budget-conscious homeowners. Its bright LED status indicator provides instant feedback on the devices operation, while the 85-decibel alarm ensures youll be alerted at the first sign of danger.
The Ecoey detector is also built to withstand higher temperatures, making it suitable for placement near kitchens or garages. Its straightforward functionality and low cost make it an excellent choice for apartments, rental properties, or anyone needing multiple units throughout the home.
03. First Alert SCO5CN Smoke and Carbon Monoxide Detector
For those who wantpremium protection, theFirst Alert SCO5CNis a standout. This combination unit offers both smoke and CO detection, utilizing advanced electrochemical sensors for accurate gas monitoring and photoelectric technology for smoke. Its battery-powered, so you can place it anywhere, and installation is simple.
What sets the SCO5CN apart is its reliability and reputationFirst Alert is a trusted name in home safety. The alarm is loud, the sensors are responsive, and the unit includes a test/silence button for easy maintenance. If youre seeking a detector that blends performance with peace of mind, this is a solid investment.
04. Kidde Nighthawk Carbon Monoxide Detector
TheKidde Nighthawk Carbon Monoxide Detectoris a plug-in model with battery backup, offering continuous protection even during power outages. Its standout feature is the digital display, which shows real-time CO levels in parts per million (ppm), allowing you to monitor air quality at a glance.
Installation is as simple as plugging it into any standard outlet, and the 6-foot cord offers flexibility in placement. The Nighthawk is known for its accuracy and quick response times, making it a favorite among safety experts. For homeowners who want detailed information and reliable alerts, this model is a top contender.
05. X-Sense Smoke & Carbon Monoxide Alarm
TheX-Sense Smoke & Carbon Monoxide Alarmis a modern, battery-powered unit that offers both smoke and CO detection in a sleek, compact design. Its electrochemical CO sensor and photoelectric smoke sensor provide comprehensive coverage, while the large digital display offers real-time readings and status updates.
Users appreciate the intuitive interface and clear voice alerts, which specify whether smoke or CO is detected. The 10-year battery life minimizes maintenance, and the alarms loud, 85-decibel siren ensures youll be notified in any emergency. This is an excellent choice for those seeking a low-maintenance, high-tech solution.
06. First Alert CO615 Carbon Monoxide Detector
TheFirst Alert CO615is a plug-in detector with a digital display and battery backup, making it one of the most user-friendly options on the market. The real-time display shows current CO concentrations and battery status, while the peak level button lets you review the highest CO levels detected over time.
Installation is flexible, thanks to the long power cord and wall-mounting option. The CO615 is praised for its accuracy and quick response, with test results showing it detects dangerous CO levels within minutes. Its affordable price and robust feature set make it a strong choice for families prioritizing both safety and value.
07. Google Nest Protect (2nd Gen)
For smart home enthusiasts, theGoogle Nest Protect (2nd Gen)offers cutting-edge protection. This Wi-Fi-enabled device combines smoke and CO detection with smart alerts sent directly to your phone. The split-spectrum sensor detects both fast and slow-burning fires, while the electrochemical CO sensor ensures accurate gas monitoring.
Nest Protects app integration allows for remote monitoring, and its voice alerts specify the type and location of danger. The unit also performs self-tests and sends notifications when maintenance is needed. While its pricier than basic models, its advanced features and seamless smart home integration make it a favorite among tech-savvy homeowners.
Top Carbon Monoxide Detectors - Conclusion
Choosing thebest carbon monoxide detectoris a critical step in safeguarding your home and loved ones. Whether you opt for a budget-friendly, battery-powered model or a feature-rich smart detector, the key is to select a device that fits your homes needs and meets recognized safety standards.
Remember to test your detectors regularly, replace batteries as needed, and follow manufacturer guidelines for placement and maintenance. Your familys safety is worth every effortand with one of these top-rated detectors, you can rest easy knowing youre protected from one of the most dangerous threats in the home.
