CO detector technology has advanced significantly, ensuring that homes and businesses are better protected against the dangers of carbon monoxide. The best CO detectors of 2025 offer enhanced features such as smart connectivity, real-time alerts, and improved sensitivity to detect even the smallest levels of this odorless gas. With a variety of options available, consumers can choose from battery-operated models, plug-in devices, and those integrated with home security systems, ensuring safety and peace of mind.
Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
- Electrochemical sensor technology detects CO gas
- Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included); Install on a wall of your home or place on a tabletop
- Easy to take along for hotel and vacation rental monitoring
- Green LED indicates power to the carbon monoxide detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
- Event Memory records the last time carbon monoxide was detected or when the unit was last tested
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SALE
−$13.20
Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button
- Easy Installation - simply plug-in to a standard, 120V outlet in your home
- 2-AA battery backup provides protection during a power outage
- 85-decibel alarm announces when carbon monoxide is detected
- Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
- Test-Hush Button makes testing the detector or silencing false alarms easy
$24.79
Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
- Electrochemical sensor technology detects CO gas
- Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included)
- Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop
- Green LED indicates power to the smoke detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
- Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
$27.60
SALE
−$4.74
FIRST ALERT Carbon Monoxide Detector, No Outlet Required, Battery Operated, CO400, White, 2 Count (Pack of 1)
- Keep your family safe with this 2-pack of easy to use, battery operated carbon monoxide alarms; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
- Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
- A loud 85-decibel alarm sounds when CO levels reach dangerous levels
- To ensure complete protection make sure to place one on each level of your home and in each bedroom
- 5-year limited warranty; Equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety
$25.25
SALE
−$19.00
First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White
- Keep your family safe with this easy to use plug in carbon monoxide alarm; It works with any standard outlet and also has a battery backup for continuous monitoring of Carbon Monoxide levels, even if there's a power failure
- Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
- Simple to use, with a single test/silence button; a loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels. Low battery signal mute, quiets low battery signal for upto 8 hours
- To ensure complete protection make sure to place one on each level of your home and in each bedroom
- 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
$27.99
SALE
−$1.30
3 Pack Carbon Monoxide detectors,co Detector,Carbon Monoxide Alarm,co2 Detector Battery Powered with LCD Display,Carbon Monoxide Detector,UL2034 Standards,for Home
- Easy to Install: The co alarm and comes with screws for easy installation on walls or ceilings. Powered by 3 x 1.5V AA batteries (not included),It requires no hardwired, portable and easy installation,no need for socket, The battery means constant monitoring, even if there's a power failure! co detector battery can be used for about 36 months,It is convenient to replace the battery and has a long service life.
- High Accuracy & Reliability: Features an advanced electrochemical carbon monoxide sensor that accurately detects real-time CO lcarbon monoxide levels.
- Instant Alert: When carbon monoxide detectors rise to alarm levels, CO sensor detects CO, the red LED will flash,LCD Blue back light will be lighted, An early warning will be delivered through a loud 85-decibel alarm.
- Self-test Function and Informative LCD: The unit will sound “chirp” and red LED flashes once as power up, “888” on the LCD Then pressing the test button, the unit will sound beeps with red LED flashes. Displays real-time CO levels and remembers dangerous CO levels since the last preset. ’Err’ on the LCD to indicate the unit is malfunctioning. ‘Lb' on the LCD toindicate it low battery and need replacement. “000” displays on the LCD for 3 seconds and then enter in normal operation mode.
- Wide Application: The carbon monoxide detectors is suitable for living rooms, kitchens, bedrooms, offices, hotels, ,dormitories and portable co2 detector for travel,etc. It can effectively prevent fire accidents and provide reliable protection for your family's safety.
$23.38
Carbon Monoxide Detectors, CO Detector Battery Powered, Carbon Monoxide Alarm with Sensitive CO Sensor, LCD Display and Sound Warning for Home, Bedroom, Kitchen
- High Accuracy and Reliability:Shyeeh carbon monoxide detectors has a built-in advanced electrochemical sensor that detects dangerous CO levels more accurately and alarm more quickly.
- Alarm Criteria:Safeguard your home with Shyeeh co detector specific alarm thresholds: 50ppm (alert within 60-90 mins), 100ppm (within 10-40 mins), and ≥300ppm (within 3 mins). In case of danger, the carbon-monoxide detectors gives an alarm of no less than 85dB to 215-430ft²(20-40m²) to alert you.
- Bttery Pwered,Easy to Istall:You can mount carbon monoxide alarm on the wall or ceiling with screws (Include). Powered by 3 * 1.5V AA batteries (Not Included), no socket required, not affected by power outages, and can continuously monitor carbon monoxide levels to ensure your family's safety.
- Real-time Data LCD display:The co monitor provides 24-hour real-time monitoring, making it easy to read the level of carbon monoxide in your surroundings and protect your family from an invisible threat.
- Home Protection:According to data analysed in the United States, a home fire occurs every 38 seconds. The earlier the danger is recognised, the risk of death is reduced by 50%. The carbon monoxide detectors monitor will protect your home from the dangers of CO and eliminate the need to pay high detection fees for suspected carbon monoxide leaks.
$8.99
SALE
−$2.00
2 Packs Carbon Monoxide Detectors,CO Alarm Detector Monitor Battery Operated with PPM Value Display,Carbon Monoxide Alarm with Sound &Light Warning,Accurate & Easy to Read,for Home Kitchen Office
- Sound and Light Alarm - When dangerous carbon monoxide levels are detected,Carbon Monoxide Detectors activates a loud 85-decibel warning accompanied by a flashing red LED,PPM Value Display,Our carbon monoxide detector provides Real-time monitoring of carbon monoxide gas levels,ensuring you and your family are alerted promptly.
- High Sensitivity & Rapid Response - Featuring an advanced Carbon Monoxide Detectors Chip and electrochemical sensor, this CO Alarm quickly detects odourless, invisible, and life-threatening carbon monoxide.It responds swiftly to protect your loved ones in critical moments.
- Easy Installation -A single test/reset button simplifies operation. Powered by 3 x 1.5V AAA batteries (not included), this Carbon Monoxide Alarms offers portability and flexibility. No need for power sockets or worrying about outages—install it anywhere in your home with ease.
- Multiple Alarm Standards for Precise Alerts - Be informed of varying CO levels with these alarm settings:50ppm: Alarm triggers within 60 to 90 minutes.100ppm: Alarm triggers within 10 to 40 minutes.300ppm: Alarm triggers within 3 minutes.Stay ahead and take timely action to ensure safety.
- Versatile Application for Every Space - Perfect for a wide range of environments, including your kitchen, bedroom, bathroom, hotels, or even outdoor activities like barbecuing or in parking garages. Wherever carbon monoxide might pose a threat, this detector ensures peace of mind.
$15.99
SALE
−$1.56
2 Pack Carbon Monoxide Detectors,CO Detectors Battery Powered,Carbon Monoxide CO Alarms with Light&Digital Display for Home,Bedroom,Kitchen,Office
- High Sensitivity and Rapid Response: Equipped with an advanced Carbon Monoxide Detector Chip and electrochemical sensor, our CO Gas Monitor Alarm quickly detects odorless, invisible, and deadly carbon monoxide in the air.Respond quickly to protect your life.
- Easy Installation: Our YTBASE carbon monoxide detector provides continuous monitoring of CO levels, ensuring the safety of your family. No need for wiring, just insert 2 AA batteries (not included) and it's ready to detect, even during power failures.
- Multiple Alarm Standards: Be alerted at different levels of carbon monoxide concentration. 50ppm sounds an alarm within 60 to 90 minutes, 100ppm sounds an alarm within 10 to 40 minutes, and 300ppm sounds an alarm within 3 minutes. Stay informed and take prompt action.
- Simple to Use: Featuring a single test/reset button, our CO detector is user-friendly. When dangerous CO levels are detected, the red light flashes and a loud 85-decibel alarm sounds, ensuring the safety of your loved ones and property.
- Wide Application: Suitable for various environments where carbon monoxide may be present, such as your home kitchen, bedroom, bathroom, hotel, or during outdoor activities like barbecuing or in parking garages. Stay protected wherever you are.
$14.99
SALE
−$28.56
Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display
- Easy Installation - simply plug-in to a standard, 120V outlet in your home
- 9-volt battery backup provides protection during a power outage
- Digital LED display shows the level of carbon monoxide the CO alarm is sensing
- 85-decibel alarm announces when carbon monoxide is detected
- Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
$42.94
Last update on 2025-05-03 / Affiliate links / Images from Amazon Product Advertising API