Best Battery Carbon Monoxide Detectors of 2026

The Kidde CO Alarm uses advanced electrochemical sensor technology to accurately detect carbon monoxide gas, helping keep your home safe. It’s battery powered with 2 AA batteries included, so you can install it easily anywhere without worrying about wiring or power outages. This means you get continuous protection even during a blackout. The detector features a green LED that shows it’s working properly, and an 85-decibel alarm with a red LED that alerts you loudly if carbon monoxide is present. These features provide clear, reliable warnings so you can act quickly to protect your family.

The Kidde Carbon Monoxide Detector is designed for easy setup, simply plugging into any standard 120V outlet, so you can quickly protect your home. It includes a 2-AA battery backup, ensuring continuous monitoring even during power outages, giving you peace of mind at all times. The detector sounds a loud 85-decibel alarm to alert you immediately if carbon monoxide is present, keeping you and your family safe. Additionally, it features a memory that records the last carbon monoxide detection or test, helping you stay informed about your home's safety status. This device combines reliability and convenience in one simple package.

The Kidde Battery Operated CO Alarm is equipped with Electrochemical sensing technology which ensures that you are alerted of the presence of carbon monoxide gas. The device features CO detector with alert modes, 2 LED lights, and 85 decibel alarm. In case of a power failure, the detector operates on 3-AA batteries. Additionally, the easy to read digital display allows you to easily monitor carbon monoxide levels. With UL certification and a 10-year limited warranty, this CO detector ensures your safety.

Protect your family from the dangers of carbon monoxide with this battery-operated alarm. The electrochemical sensor accurately detects CO levels, and the alarm sounds loudly at 85 decibels to alert you to danger. The 5-year limited warranty and end-of-life signal chirp ensure that you have complete protection. Place one on each level of your home and in each bedroom for complete peace of mind.

The Kidde Nighthawk Carbon Monoxide Detector is an AC-plug-in device with battery backup and digital display. It offers protection during power failure, easy installation, peace of mind with its testing feature and electrochemical sensing technology. The CO alarm detects the presence of carbon monoxide gas, emits an 85 decibel alarm sound and has a memory storage option. It is UL certified and comes with a 10-year limited warranty.

Be safe with the First Alert CO615 Carbon Monoxide Detector, which plugs into any standard outlet and has a battery backup. It has a digital display and advanced electrochemical sensor, which can indicate the highest carbon monoxide level detected. The device emits an 85-decibel alarm when the carbon monoxide level reaches dangerous levels. It is suggested to place one unit on each level of your home and in each bedroom. The device has a 7-year limited warranty and an end-of-life signal chirp to remind you when it's time to replace the unit.

The First Alert CO710 Carbon Monoxide Detector is a reliable and user-friendly device that guarantees continuous monitoring of carbon monoxide levels in your home. Its backlit digital display shows both temperature and CO concentration, while the peak level feature displays the highest concentration of carbon monoxide measured. Equipped with a built-in 10-year lithium battery, this detector ensures continuous protection for the life of the unit. Once CO levels reach dangerous levels, the loud 85-decibel alarm will sound to alert you, ensuring your family's safety.

The Kidde Smoke CO Detector combines smoke and carbon monoxide detection in one device, giving you clear voice alerts like "Fire! Fire!" or "Warning! Carbon Monoxide!" to keep you informed instantly. Its ionization sensor detects invisible fire particles early, helping protect your home from fast-moving fires with a loud 85-decibel alarm. The detector runs on your home's 120V power but includes a battery backup, so you stay protected even during power outages. Plus, the handy Test-Hush feature lets you temporarily silence false alarms for about 9 minutes, adding convenience without compromising safety. This device is designed to keep your home safer with ease.

The SHYEEH CO Detector is designed to keep your home safe with its advanced features. It uses a precise electrochemical sensor to quickly detect dangerous levels of carbon monoxide, ensuring your family is alerted promptly. With specific alarm thresholds, you will receive warnings based on the severity of CO levels, allowing for timely action. The real-time LCD display shows the current CO levels, making it easy for you to monitor air quality. Battery-powered and easy to install, this detector offers continuous protection even during power outages, giving you peace of mind.

The Pumwry CO Alarm Pack offers easy installation with included screws and runs on three AA batteries, so you can place it anywhere without worrying about power outlets or wiring. This battery-powered design ensures continuous monitoring even during power outages, giving you peace of mind. It uses a precise electrochemical sensor to detect carbon monoxide levels accurately, helping you stay safe from this invisible threat. The alarm alerts you instantly with a loud 85-decibel sound, flashing red LED, and a bright blue-backlit LCD screen, so you’ll notice the warning right away. Plus, it features a self-test function to confirm the device is working properly and an informative display that shows real-time CO levels and alerts you to battery status or errors.