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10 Best Carbon Monoxide Detectors of September 2020

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  1. Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector with Digital Display KN-COPP-3
    Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector with Digital Display KN-COPP-3
    Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector with Digital Display KN-COPP-3
    Kidde
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    9.9
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    Product Highlights
    • Test button functions – tests the unit for proper operation and resets the carbon monoxide alarm
    • Ten years after the initial power up, this alarm will “beep” two times every 30 seconds to indicate that it is time to replace the alarm.
    • Power source: 120vac. temperature range-40˚f (4.4˚c) to 100˚f (37.8˚c). humidity range-5%-95% relative humidity (rh)
    • Peak level button – displays the peak co level recorded by the alarm since it was last reset or unplugged
    • Led operation – blinking dot in lower right corner of display denotes normal operation
    • Note: this co alarm is not battery operated. however, these alarms are equipped with 9 volt battery backup – the 9 volt battery is to supply short term back-up during a power outage.
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    Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector Review and Comparison
    $28.03 New
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    Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector Review and Comparison
    $35.00 Used
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    Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector Review and Comparison
    $50.99
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    Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector Review and Comparison
    $24.99
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  2. Kidde Carbon Monoxide Detector Alarm |Battery Operated | Model # KN-COB-LP2 9CO5-LP2
    Kidde Carbon Monoxide Detector Alarm |Battery Operated | Model # KN-COB-LP2 9CO5-LP2
    Kidde Carbon Monoxide Detector Alarm |Battery Operated | Model # KN-COB-LP2 9CO5-LP2
    Kidde
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    9.6
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    Product Highlights
    • Low battery hush
    • Loud 85 decibel alarm
    • 2 aa battery backup
    • Event memory
    • Low battery signal
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    Kidde Carbon Monoxide Detector Alarm |Battery Operated | Review and Comparison
    $16.27 New
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    Kidde Carbon Monoxide Detector Alarm |Battery Operated | Review and Comparison
    $9.00 Used
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    Kidde Carbon Monoxide Detector Alarm |Battery Operated | Review and Comparison
    $26.09
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  3. First Alert Plug-In Carbon Monoxide Detector, CO600
    First Alert Plug-In Carbon Monoxide Detector, CO600
    First Alert Plug-In Carbon Monoxide Detector, CO600
    FIRST ALERT
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    9.1
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    Product Highlights
    • Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
    • To ensure complete protection make sure to place one on each level of your home and in each bedroom
    • First alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (based on a first alert brand trust survey in february 2018)
    • Uses electrochemical carbon monoxide sensor the most accurate technology available
    • Keep your family safe with this easy to use plug in carbon monoxide alarm; it works with any standard outlet
    • A loud 85 decibel alarm sounds when carbon monoxide levels reach dangerous levels
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    First Alert Plug-In Carbon Monoxide Detector, CO600 Review and Comparison
    $19.98 New
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    First Alert Plug-In Carbon Monoxide Detector, CO600 Review and Comparison
    $18.00 Used
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  4. First Alert CO400 Carbon Monoxide Detector, White, Pack of 1
    First Alert CO400 Carbon Monoxide Detector, White, Pack of 1
    First Alert CO400 Carbon Monoxide Detector, White, Pack of 1
    FIRST ALERT
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    8.9
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    Product Highlights
    • Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
    • To ensure complete protection make sure to place one on each level of your home and in each bedroom
    • All first alert co alarms are rigorously tested to meet ul standards
    • Keep your family safe with this easy to use, battery operated carbon monoxide alarm; battery powered alarms provide continuous monitoring of co levels, even if there's a power failure
    • A loud 85 decibel alarm sounds when co levels reach dangerous levels
    • 7-year limited warranty; equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
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    First Alert CO400 Carbon Monoxide Detector, White, Pack Review and Comparison
    $18.98 New
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    First Alert CO400 Carbon Monoxide Detector, White, Pack Review and Comparison
    $12.00 Used
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    First Alert CO400 Carbon Monoxide Detector, White, Pack Review and Comparison
    $24.95
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    5. 7.9 Reviews
    How we Score
    9.5 features quality
    8.9 popularity
    8.4 brand reputation
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  5. First Alert BRK SC9120B Hardwired Smoke Detector and Carbon Monoxide (CO) Detector
    First Alert BRK SC9120B Hardwired Smoke Detector and Carbon Monoxide (CO) Detector with Battery Backup
    First Alert BRK SC9120B Hardwired Smoke Detector and Carbon Monoxide (CO) Detector with Battery Backup
    FIRST ALERT
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    8.6
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    Our Scoring considers products features, online popularity, consumers reviews, brand reputation, prices and more
    • Battery life
      9.0
    • Easy to install
      9.5
    • Motion detection
      9.0
    • Tech Support
      9.0
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  6. X-Sense 10 Year Battery (Not Hardwired) Smoke and Carbon Monoxide Detector with LCD
    X-Sense 10 Year Battery (Not Hardwired) Smoke and Carbon Monoxide Detector with LCD Display, Dual Sensor Smoke CO Alarm Complies with UL 217 & UL 2034 Standards, Auto-Check, SC01
    X-Sense 10 Year Battery (Not Hardwired) Smoke and Carbon Monoxide Detector with LCD Display, Dual Sensor Smoke CO Alarm Complies with UL 217 & UL 2034 Standards, Auto-Check, SC01
    X-Sense
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    8.2
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    Our Scoring considers products features, online popularity, consumers reviews, brand reputation, prices and more
    • Battery life
      10.0
    • Easy to install
      9.0
    • Value for money
      9.5
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  7. Kidde Carbon Monoxide Alarm Detector | Digital Display | Battery Operated | Model
    Kidde Carbon Monoxide Alarm Detector | Digital Display | Battery Operated | Model KN-COPP-B-LPM
    Kidde Carbon Monoxide Alarm Detector | Digital Display | Battery Operated | Model KN-COPP-B-LPM
    Kidde
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    7.9
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    Product Highlights
    • Provides peace of mind against the silent killer and a digital display
    • Battery operated - provides best protection during power outages. battery safeguard makes it difficult to close the cover without batteries in the unit. low battery signal alerts user when the batteries need to be replaced. slide-out battery door cover gives immediate access to batteries
    • Led's - green led for normal operation, red led for alarm. temperature range 40˚f (4. 4˚c) to 100˚f (37. 8˚c). sensor: electrochemical
    • Digital display - displays the level of carbon monoxide the unit is sensing. shows co level in ppm (parts per million). updates digital reading every 15 seconds allowing you to see if levels change. peak level memory displays the highest co concentration measured since the last reset
    • Test/reset button - tests unit’s electronic circuitry & horn and resets the unit during alarm. tests co alarm circuit operation and allows you to immediately silence the alarm
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    Kidde Carbon Monoxide Alarm Detector | Digital Display Review and Comparison
    $21.87
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    Kidde Carbon Monoxide Alarm Detector | Digital Display Review and Comparison
    $25.00
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  8. First Alert Dual-Power Carbon Monoxide Detector Alarm | Plug-In with Battery Backup
    First Alert Dual-Power Carbon Monoxide Detector Alarm | Plug-In with Battery Backup and Digital Display, CO615
    First Alert Dual-Power Carbon Monoxide Detector Alarm | Plug-In with Battery Backup and Digital Display, CO615
    FIRST ALERT
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    7.6
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    Product Highlights
    • Features an advanced electrochemical carbon monoxide sensor; peak level feature displays the highest concentration of carbon monoxide measured
    • To ensure complete protection make sure to place one on each level of your home and in each bedroom
    • All first alert co alarms are rigorously tested to meet ul standards
    • Keep your family safe with this digital display, 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
    • A loud 85 decibel alarm sounds when carbon monoxide levels reach dangerous levels
    • 7 year limited warranty; equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
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    First Alert Dual-Power Carbon Monoxide Detector Alarm | Review and Comparison
    $32.81 New
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    First Alert Dual-Power Carbon Monoxide Detector Alarm | Review and Comparison
    $27.00 Used
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  9. Carbon Monoxide Alarm Detector,with Digital LCD Display and Voice Warning - Battery powered
    Carbon Monoxide Alarm Detector,with Digital LCD Display and Voice Warning - Battery powered
    Carbon Monoxide Alarm Detector,with Digital LCD Display and Voice Warning - Battery powered
    Alert Plus
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    7.4
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    Product Highlights
    • Unit comes with with batteries
    • 100% customer satisfaction guaranteed. if you dont like it will take it back no quations ask
    • Superior alarm performance: proven performance for sensitively detecting dangerous carbon monoxide (co) leaks; powerful 85 db alarm tone will sound through your home and instantly alert those in danger
    • 5 year manufacturer warranty
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    Carbon Monoxide Alarm Detector,with Digital LCD Display Review and Comparison
    $18.48
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    Carbon Monoxide Alarm Detector,with Digital LCD Display Review and Comparison
    $27.63
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  10. Carbon Monoxide Detector 3 Pack CO Alarm Detector Voice Notification, LCD Digital Display
    Carbon Monoxide Detector 3 Pack CO Alarm Detector Voice Notification, LCD Digital Display, Battery Operated for House, Bedroom, Living Room, Garage, Hotel, Office (AAA Batteries NOT Included)
    Carbon Monoxide Detector 3 Pack CO Alarm Detector Voice Notification, LCD Digital Display, Battery Operated for House, Bedroom, Living Room, Garage, Hotel, Office (AAA Batteries NOT Included)
    SiDell-US
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    7.1
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    Product Highlights
    • 【component advantage】human voice notification prompt, high reliable electrochemical sensor, corbon monoxide concentration displaying (ppm), low current consumption, ultra-long standy time, alarm memory function, low battery prompt, auto detect sensor failure.
    • 【easy installation & widely used】coming with mounting bracket, screws and anchor plugs, just drill holes in appropriate positions, and done; used for each bedroom sleeping area in your home kitchen and living room, and any rooms with an increased risk of fire danger can be installed a smoke detector and carbon monoxide alarm.
    • 【high sensitive & quick responsive】build-in smart carbon monoxide detector chip and the electrochemical sensor, enough to detect smoke and odorless, invisible and deadly carbon monoxide in the air, quick reaction to save your life in the first time when fire hazard occurs.
    • 【lcd digital display】co detector offers voice notification and a digital readout of the co concentration. detecting level range: 0-999ppm. alarm concentration: 30-999ppm. it can display both current reading and a peak reading from memory of the highest level measured over a period of time.
    • 【warranty and service】18 months worry-free product guarantee ensures long-lasting enjoyment of your purchase.and please contact seller first once you have any questions.
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    Carbon Monoxide Detector 3 Pack CO Alarm Detector Review and Comparison
    $38.99
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    Carbon Monoxide Detector 3 Pack CO Alarm Detector Review and Comparison
    $57.41
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