Best Carbon Monoxide Detectors in 2020

$29.99
in stock
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4 used from $25.52
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$24.97
$55.26
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6 new from $18.99
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$29.97
$71.50
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20 new from $29.97
1 used from $39.99
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$36.49
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8 new from $28.73
1 used from $36.50
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$113.99
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9 new from $113.99
4 used from $95.08
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$20.49
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15 new from $18.95
6 used from $12.89
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$24.26
in stock
9 new from $23.99
2 used from $21.10
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Last updated on May 4, 2020 6:27 am

First Alert Smoke Detector and Carbon Monoxide Detector Alarm | Battery Operated, SCO5CN

$29.99  in stock
6 new from $29.99
4 used from $25.52
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as of May 4, 2020 6:27 am

Features

  • Keep your family safe with this battery operated smoke and carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure
  • Features an electrochemical Carbon Monoxide sensing technology as well as a photoelectric sensor that detects the larger particles of a smoldering fire
  • Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning upon detection
  • Battery operated unit installs quickly and easily without an electrician. Low battery signal mute, quiets low battery signal for upto 8 hours
  • Simple to use, with a single test/silence button; EZ access battery drawer allows you to change battery without removing alarm from ceiling

Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-Copp-B-LPM

$55.26
$24.97  in stock
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Features

  • 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
  • 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
  • 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
  • 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
  • Provides peace of mind against the silent killer and a digital display

Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector with Digital Display KN-COPP-3

$71.50
$29.97  in stock
20 new from $29.97
1 used from $39.99
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Features

  • Peak Level Button – Displays the peak CO level recorded by the alarm since it was last reset or unplugged
  • Test Button Functions – Tests the unit for proper operation and resets the Carbon Monoxide alarm
  • LED Operation – Blinking dot in lower right corner of display denotes normal operation
  • 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.
  • 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.

Kidde Smoke and Carbon Monoxide Detector Alarm with Voice Warning | Hardwired w/Battery Backup | Interconnectable | Model # KN-COSM-IBA

$39.78  in stock
6 new from $39.78
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as of May 4, 2020 6:27 am

Features

  • Smart Interconnect-Interconnects up to 24 Kidde devices (of which 18 can be initiating), Battery Backup (2-AA batteries included)-Provides protection during power outages. Front Loading Battery Door-Replace the backup batteries without disconnecting from mounting bracket
  • Humidity range: 10%-95% relative humidity, non-condensing. Battery Lockout System-The battery door will not close unless the batteries are properly installed, Alarm Tamper Resist-Helps deter from tampering and theft, Adjustable Mounting Bracket-Makes installation fast and easy. Works with existing smoke and combination smoke and CO mounting brackets.
  • Peak Level Memory-Announces “CARBON MONOXIDE PREVIOUSLY DETECTED” if alarm has detected a CO level of 100ppm or higher since it was last reset, HushTM Feature-Silences nuisance alarms for approximately 9 minutes. (Smoke must be present before HushTM is activated)
  • Ionization Sensor Technology-Ideal for detecting fast flaming and other types of fires, est Button Functions: – Tests the unit for proper operation - Peak Level memory - Resets the Carbon Monoxide alarm
  • Green LED-Illuminates to indicate the unit is receiving AC power. Flashes once every 60 seconds to indicate battery only mode. Flashes once per second during alarm to indicate initiating alarm. Flashes once every 16 seconds to indicate smoke or CO previously detected. Flashes every 2 seconds while the alarm is in HUSHTM mode

First Alert BRK SC9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup

$36.49  in stock
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1 used from $36.50
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as of May 4, 2020 6:27 am

Features

  • Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure
  • Features an electrochemical Carbon Monoxide sensing technology as well as an ionization sensor for smoke detection.
  • Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning upon detection
  • Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
  • Simple to use, with a single test/silence button, and side load battery compartment; tamper resistant locking brackets and universal mounting brackets make installation easy

Kidde 21026043 Battery-Operated(Not Hardwired) Combination Smoke/Carbon Monoxide Alarm with Voice Warning KN-COSM-BA

$44.99
$20.67  in stock
5 new from $20.67
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as of May 4, 2020 6:27 am

Features

  • Voice Alarm –Announces the hazard type detected thereby helping to speed up the correct reaction to the hazard detected. Alarm announces “Fire!” when a smoke or fire hazard is detected and announces “Warning Carbon Monoxide” when a CO hazard is detected
  • Combined Carbon Monoxide and Smoke Alarm – A single unit can be installed where previously, two were needed. Reduces installation time and helps to keep home décor attractive.
  • Audio alarm: 85 dB at 10 feet. Test/Reset Button and LEDs – Tests alarm circuitry and triggers the voice announcement. Flashing green for normal operation and flashing red for alarm condition. Humidity Range: 10 percent to 95 percent relative humidity non-condensing
  • Battery - Provides protection even during power outages when many fire and carbon monoxide incidents occur. The unit warns of a low battery condition by announcing “low battery” and by initiating an alarm chirp and activating a flashing red LED. The battery door will not close unless the batteries are properly installed. Note : The date printed on the item is manufacturing date,not the expiration date. Refer to the PDF attached below in Technical Specification for Manual.
  • Voice Announcements - Hush Feature temporarily silences nuisance alarms with “HUSH MODE ACTIVATED” and “HUSH MODE CANCELLED” voice announcement. If the alarm had detected a CO level of 100ppm or higher, the unit will announce “CARBON MONOXIDE PREVIOUSLY DETECTED” to warn of the CO incident, when the Test/ Reset button is pressed.Temperature Range:40˚F (4.4˚C) to 100˚F (37.8˚C).Voltage (volts):4.5

3 Pack Combination Smoke and Carbon Monoxide Detector Battery Operated, Travel Portable Photoelectric Fire&Co Alarm for Home

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as of May 4, 2020 6:27 am

Features

  • ✔【UL 2034 Safety Standard】Sobrovo carbon monoxide alarm meets the UL 2034 (LOT NO.0067115)safety standard which is the highest industry standards in the United States. For the safety of you and your family, please purchase high quality and authentic UL certified carbon monoxide detectors to better protect you and your family.
  • ✔【7 Years of Electrochemical Sensing Life】This carbon monoxide alarm uses a Japanese-made electrochemical / Figaro sensor, and its core electronic components are also manufactured in the United States and Japan.Compared to a conventional carbon monoxide detector, it provides the most accurate technique and accurate detection of carbon monoxide levels regardless of where the detector is placed in the room.
  • ✔【Easy to install and use】Powered by 5 years battery (including 3 x AA 1.5V battery), no longer hardwired and very easy to install at home.Simple to use, with a single test/silence button; a loud 85-decibel alarm sounds when Carbon Monoxide levels reach dangerous levels.
  • ✔【Safety and Durable】 Environmentally friendly, no odor, no radiation or harmful. 7 years of sensor life and 5 years of battery life save you energy and money to purchase carbon monoxide alarms frequently.
  • ✔【Warranty and Service】If there are any problems with our products ,you can contact us ,we must reply you within 24hours as soon as possible..NOTE: Please test it once a week to ensure the co alarm works properly.

Google, S3000BWES, Nest Protect Smoke + Carbon Monoxide Alarm, 2nd Gen, Battery

$113.99  in stock
9 new from $113.99
4 used from $95.08
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Features

  • Phone Alerts: Nest Protect sends you a message when there’s a problem or the batteries run low.
  • Smoke and CO Locator: Nest Protect speaks up if there’s smoke or CO and tells you where it is, so you know what to do.
  • Detects CO: Carbon monoxide is an invisible, poisonous gas. Nest Protect tells you where it’s hiding.
  • A Light in the Dark: Usually Nest Protect has its light turned off, but when you walk underneath it, pathlight can light your way.
  • Fast Detection: Every second counts. The Split-Spectrum Sensor looks for both fast and slow burning fires.

First Alert CO400 Carbon Monoxide Detector, White, Pack of 1

$20.49  in stock
15 new from $18.95
6 used from $12.89
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as of May 4, 2020 6:27 am

Features

  • 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
  • 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

First Alert Plug-In Carbon Monoxide Detector, CO600

$24.26  in stock
9 new from $23.99
2 used from $21.10
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as of May 4, 2020 6:27 am

Features

  • Keep your family safe with this easy to use plug in carbon monoxide alarm; It works with any standard outlet
  • 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 Carbon Monoxide levels reach dangerous levels
  • 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

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