Top 5 Best Carbon Monoxide Detector: Editor Recommended

The 10 Best Carbon Monoxide Detector Reviews:

1. Kidde AC Carbon Monoxide Detector Alarm | Plug-In

Kidde AC Carbon Monoxide Detector Alarm | Plug-In

Humidity Range:10%-95% relative humidity (RH) Carbon Monoxide Alarm AC Powered with Battery Back up; Tamper resistant feature; Led operation; Test reset button; Alerts user to replace after 10 years of operation; Low battery hush; Event memory; UL listed.

The Kidde KN-COB-DP2 plug-in carbon monoxide alarm with battery backup provides you and your family with a warning signal to protect against dangerous levels of carbon monoxide in your home.

The battery backup feature provides continuous monitoring of CO levels, even during power outages when AC-only units are not providing protection. The KN-COB-DP2 alarm has a 10-year product life, providing 40% longer protection than other CO alarms.

Nothing is more important than making sure your family is safe and prepared for anything, and with this plug-in carbon monoxide detector from Kidde, you will always be afforded peace of mind!

This CO alarm includes a battery backup to make sure it is monitoring your home at all times and uses high-tech electrochemical sensors to provide accurate carbon monoxide readings that will always keep you protected.

To prevent nuisance alarms from everyday activities, CO detectors are time-weighted alarms that are based on time and the concentration of CO levels. This unit will only sound an alarm if low levels of CO have been detected over a long period of time, but high or unhealthy levels of CO will immediately trigger an alarm.

Highlighted Features:

  • Tamper resist feature – Can be activated to cause unit to go into alarm if it has been unplugged or has come loose from the outlet
  • 2 LED’s: Red – Illuminates when in alarm mode. Green – AC power is present, normal operation
  • Test/reset button: Tests CO alarm circuit operation and allows you to immediately silence the alarm
  • End of life alarm: Alerts user to replace CO alarm after 10-years of operation
  • Provides peace of mind against the silent killer; Temperature range: 40˚F (4.4˚C) to 100˚F (37.8˚C)

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2. FIRST ALERT Carbon Monoxide Detector

FIRST ALERT Carbon Monoxide Detector

This handy 2-pack of FIRST ALERT CO400 Carbon Monoxide Alarms utilizes electrochemical carbon monoxide sensors to monitor your space for carbon monoxide threats. The battery-powered design doesn’t require an electrician; simply insert the included 9-volt battery into each alarm, and the carbon monoxide detectors are ready to go.

The advanced electrochemical CO sensors detect carbon monoxide leaks from multiple sources, such as faulty fuel-burning appliances, blocked chimneys, and generators running inside or too close to homes. When CO levels become elevated, a loud 85-decibel alarm alerts you to the threat.

Because CO evenly distributes itself, it’s important to have a CO detector on every level and in every bedroom of your home. Designed to be simple to use, each CO detector has just one button that silences or tests the unit, as well as an end-of-life timer that lets you know when it’s time to replace the device.

Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don’t know they are suffering from CO poisoning until it’s too late. Since symptoms of CO poisoning are like the flu, you might not even know you’re in danger at first. That’s why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can’t see, smell, or taste in the air.

The FIRST ALERT CO400-3 carbon monoxide alarm uses an electrochemical carbon monoxide sensor, the most accurate technology available. The permanent sensor lasts up to five years. It is powered by 1-9V replaceable battery per alarm giving you peace of mind even during power outages.

The test/silence button both silences the alarm and allows you to test its functionality. The unit monitors and re-alarms if carbon monoxide levels persist, sounding a loud 85-decibel horn. No installation is required and the attractive design allows the unit to be placed anywhere you need it.

It includes an optional wall mount with no outlet required. An audible and visual low battery signal alerts you to replace the battery. Pull down action chart has convenient guide on what to do if an alarm sounds. For use in all 50 states; compliant with current CO Laws in California, Wisconsin, and Oregon. 5 year limited warranty. UL listed.

Highlighted Features:

  • 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
  • All first alert CO alarms are rigorously tested to meet UL standards

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3. Kidde KN-COB-LP2 9CO5-LP2 21025778 Carbon Monoxide Alarm Battery

Carbon Monoxide Alarm Battery

Kidde 21025778 Carbon Monoxide Alarm Battery. Made from quality materials for durability and performance. Designed for quick and simple installation. With the use of sophisticated electronic components, the Kidde 9CO5-LP battery-operated carbon monoxide alarm protects you and your family from the dangers of carbon monoxide.

Also included is an intuitive slide-out battery door that gives easy and immediate access to the batteries and a safety feature mechanism that makes the unit difficult to close without the proper installation of the batteries. This easy-to-install alarm is appropriate for all living areas and comes with a 7-year life warranty and 5-year limited warranty.

The Kidde 9CO5-LP will alert you and your family with a loud warning signal against the dangers of elevated carbon monoxide levels in your home. This battery-operated carbon monoxide alarm continuously monitors carbon monoxide levels, even during power outages when AC-only units are not providing protection.

This unit uses an electrochemical sensor, and when it detects carbon monoxide, it will alert the user with a distinct pattern. The alarm pattern is four short beeps, followed by five seconds of silence, then four more short beeps with a corresponding red LED light.

This cycle will continue for four minutes and then change to one cycle every minute until the device is reset or the carbon monoxide is eliminated. In addition, the red LED light will pulse to indicate carbon monoxide has been detected until the device is reset or carbon monoxide is removed from the surrounding area.

When there is no carbon monoxide present, a green LED light will flash every 30 seconds, indicating a properly operating alarm when power is present.

Highlighted Features:

  • 2 AA battery backup
  • Low battery hushes
  • Event memory
  • Loud 85 decibel alarm
  • Low battery signal

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4. irst Alert CO605 Plug-In Carbon Monoxide Detector

irst Alert CO605 Plug-In Carbon Monoxide Detector

The First Alert CO605 plug in carbon monoxide alarm with battery backup uses an electrochemical carbon monoxide sensor the most accurate technology available. The alarm easily plugs into any standard outlet with no additional mounting. Battery backup ensures alarm Works even during power outages.

Mute button silences any nuisance alarms. Single button also tests alarm functions. Carbon monoxide alarm utilizes electrochemical sensor for increased accuracy. 7 year limited. Co alarm meets UL standards.

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

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 up to 8 hours

Highlighted Features:

  • 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
  • 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
  • All first alert CO alarms are rigorously tested to meet UL standards. Item length is 3.4 inches, item width is 1.38 inches and item height is 5 inches
  • 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)

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5. White, Carbon Monoxide Alarm Detector

White, Carbon Monoxide Alarm Detector

White, Carbon Monoxide Alarm Detector, Digital Display, Battery Operated

Highlighted Features:

  • White
  • Carbon Monoxide Alarm Detector
  • Digital Display, Battery Operated

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6. Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector

Carbon Monoxide Alarm Detector

Plug-In carbon monoxide alarm with battery backup. Protect your family from the dangers of carbon monoxide (CO) exposure with the Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup and Digital Display.

The Nighthawk is an easy-to-install unit that provides reliable protection against the dangers of CO. It features a digital display that shows CO levels in parts per million allowing you to see if, how, and when levels change.

Designed for home use, the Kidde KN-COPP-3 Nighthawk is a UL-listed, A/C-powered, plug-in CO alarm that utilizes sophisticated electronic components and sensor technology to protect you and your family from the dangers of CO. It plugs directly into a standard A/C outlet and includes a 9-volt battery backup that provides continuous monitoring of CO levels–even during power outages.

The leading cause of accidental poisoning deaths in North America, carbon monoxide (CO) is often referred to as the silent killer because it’s odorless, tasteless, and invisible.

Carbon monoxide poisoning can come about via a number of sources, including everyday items and appliances in your home or office. And because symptoms of CO poisoning mimic the flu or other common illnesses it can often go undiagnosed.

Highlighted 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
  • 10 years after the initial power up, this alarm will “beep” 2 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.
  • Power source: 120VAC. Temperature range-40˚F (4.4˚C) to 100˚F (37.8˚C). Humidity range-5%-95% relative humidity (RH)

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7. First Alert SCO5CN Combination Smoke and Carbon Monoxide Detector

Smoke and Carbon Monoxide Detector

The First Alert SCO5CN Combination Smoke and Carbon Monoxide Alarm features dual sensors to detect both smoke and carbon monoxide in a single device. A photoelectric sensor detects the smoke most often produced by smoldering fires, and minimizes false alarms from cooking smoke or shower steam.

Additionally, the advanced electrochemical CO sensor detects carbon monoxide leaks from multiple sources, such as faulty fuel burning appliances, blocked chimneys, and generators running inside or too close to homes.

A loud, 85 decibel siren alerts you to the threat; unique alarm sounds and indicator lights on its face distinguish a smoke warning from a carbon monoxide warning. This carbon monoxide and smoke detector is battery operated, so you don’t need an electrician for installation.

Requiring just two AA batteries and featuring an easy access battery compartment for quick changes, this smoke and carbon monoxide detector has a single button that allows you to silence a false alarm or test the unit.

Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don’t know they are suffering from CO poisoning until its too late. Since symptoms of CO poisoning are like the flu, you might not even know you’re in danger at first. That’s why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can’t see, smell or taste in the air.

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

Highlighted Features:

  • 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 up to 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
  • 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety; All first alert alarms are rigorously tested to meet UL standards. Emits T3 Pattern
  • It can ship within the US except New York

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8. Carbon Monoxide Detector Gas Detection

Carbon Monoxide Detector Gas Detection

press the test button for 5s (A single silence and test button eliminates confusion and allows you to silence and test the alarm easily). the unit will sound 4 beeps every 5s twice & Red LED flashes & LCD display “000” (3 min), that shows the unit in a normal situation.

Low Power warning Carbon Monoxide Alarm alerts you to dangerous carbon monoxide, even in the event of a power outage. IF the alarm is low power, you can find the situation. Green LED flashes once every 30s & Red LED is flashes LCD Display.

Malfunctioning warning IF the Carbon Monoxide Alarm does not work well, you can find the situation Sound every 30s LED: Green LED is not flashes and Red LED is flashes LCD Display. This carbon monoxide detector features a digital display that shows the carbon monoxide level in the room, as well as the unit’s power level. A:level over 999ppm

High Sensitive & Quick Responsive: Build-in Carbon Monoxide Detector Chip and the electrochemical sensor, Enough to detect odorless invisible and deadly carbon monoxide in the air, Quick reaction to save your life in the first time when fire hazard occurs.

Highlighted Features:

  • Alarm Warning: When a dangerous level of carbon monoxide is detected the red LED will flashes and a loud alarm pattern will sound–Loud 85 decibel alarm with LED Flash.
  • Alarm Standard: 50ppm, alert within 60 to 90 minutes; 100ppm, alert within 10 to 40 minutes; 300ppm, alert within 3 minutes. Note: When you test the detector, please do not use gas blow the hole directly.
  • Easy Installation & Widely Used: Coming with mounting accessories, just drill holes in appropriate positions, and done; Used for bedroom, kitchen, living room and any other area with a risk of fire danger can be installed a smoke detector and CO alarm.
  • 3 * 1.5V AA battery powered CO detector (not included), Low Current consumption, Ultra-long Standy time. 12 months worry-free product guarantee, please contact seller first once you have any questions.

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9. 3 Pack Smoke and Carbon Monoxide Detector Battery Operated

Carbon Monoxide Detector Battery Operated

According to US data analysis, a family fire begins every 38 seconds. The faster you know about the fire, the sooner you start moving your family, and the smoke alarm at work reduces the risk of home fire deaths by 50%.

The smoke alarm with test button allows you to test the unit’s functionality. It features a low battery alert to remind you when to change the battery and has a missing battery guard to ensure that a battery is placed inside the alarm.

The side battery drawer slides open for easy battery replacement. A blinking power indicator on the unit confirms that it is receiving power. The alarm contains an optional pin to lock the battery and unit in place for tamper resistance. It can be mounted on either the ceiling or the wall and can be used in mobile homes and RVs.

The Smoke Detector contains the test button. Flickering power indicator, When the red LED light flashes for 32 seconds, it indicates that the smoke alarm is running normally.

When the alarm senses products of combustion and goes into alarm, the red LED will flash rapidly (one flash per second)..The rapid flashing LED and pulsating alarm will continue until the air is cleared or the test button is released.

Highlighted Features:

  • Combo smoke detector/carbon monoxide alarm detects two threats
  • Electrochemical CO sensor alerts you to carbon monoxide danger
  • Photoelectric sensor detects smoke while minimizing false alarms
  • Battery-operated unit installs quickly and easily without an electrician A single button tests the unit or silences the alarm. Low battery signal mute, quiets low battery signal for up to 8 hours
  • Safety and 5 year life: Low battery signal lalarm and end of life warning ensures the detector can work normal. Environment friendly, without smell,

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10. Kidde AC Plug-In Carbon Monoxide

Kidde AC Plug-In Carbon Monoxide

The Kidde KN-COEG-3 AC powered, plug-in CO and explosive gas alarm protect you and your family from two deadly threats. The KN-COEG-3 includes 9V battery backup that provides protection during a power outage, when AC-only units cannot provide protection.

By pressing the Peak Level Button you can see the peak CO level recorded by the alarm since it was last reset or unplugged. The continuous digital display shows you the level of carbon monoxide (if any) the unit is sensing as well as if gas is present.

The gas sensor is a metal oxide sensor designed to detect natural gas (methane) or propane. Temperature range- 40 degree Fahrenheit to 100 degree Fahrenheit.

Protect your family from the dangers of carbon monoxide (CO), methane, and propane exposure with the Kidde KN-COEG-3 Nighthawk Plug-In Carbon Monoxide and Explosive Gas Alarm.

The Nighthawk is an easy-to-install unit that provides reliable protection against the dangers of CO and explosive gas. The digital display shows if gas is present indicates CO levels in parts per million, allowing you to see if, how, and when levels change.

Highlighted Features:

  • Protects you and your family from 2 deadly threats: Carbon monoxide and explosive gas.
  • Sounder alarm – The KN-COEG-3 offers a loud 85-decibel pulsing alarm that will sound to alert you to a potential problem.
  • Digital display – Displays the level of carbon monoxide the unit is sensing.
  • Peak level memory – Recalls the highest CO concentration detected
  • Test/reset button – Tests unit’s electronic circuitry operation and allows you to immediately silence the alarm
  • Two alarms in one detects carbon monoxide and explosive gas
  • Three convenient mounting options

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