I recently moved into a new home and it has a fireplace, so I'm looking to choose a carbon monoxide alarm.

Carbon monoxide (CO) is an invisible, odorless gas that poses a significant threat to household safety. A reliable carbon monoxide alarm is essential to detect this hazardous gas early. This review examines several popular carbon monoxide alarms, including the Sensereo C1, Kidde 5CO, Firehawk C07B-10Y, FireAngel CO-9X-10T-FF, Honeywell R200C-1 and Aico Ei208, evaluating their features, performance, and ease of use.

The general test standard for CO detectors in Europe is EN-50291, all of below detectors meet the standard (claimed).

Sensereo C1 Carbon Monoxide Alarm

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Key Features:

• Sensor component: The Sensereo C1 is equipped with the Figaro TGS5042, widely regarded as one of the most reliable and accurate electrochemical sensors available.
• Replaceable Batteries: The C1 model uses replaceable AA batteries, allowing for easy maintenance and extended product life. This feature contrasts with some other models that come with sealed batteries, which require full unit replacement after a certain period.• Can be wall-mounted or placed on a flat surface
• Loud Alarm: The 85dB alarm is loud enough to be heard throughout most homes, ensuring that any potential danger is communicated effectively.

Pros:

• High sensitivity and accuracy due to the Figaro TGS5042 sensor.
• Cost-effective with replaceable batteries.
• Easy to install with a sleek, unobtrusive design.

Cons:

• Requires periodic battery replacement, though this also extends the unit’s overall lifespan.

Amazon link

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Kidde 5CO Carbon Monoxide Alarm

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Key Features:

• Brand: Kidde is the leading brand for fire detectors.
• 7-Year Warranty: The device comes with a 7-year warranty, offering peace of mind and reliability.
• Battery-Powered: The Kidde 5CO operates on three AA batteries, with a battery level indicator to ensure you know when it’s time for a replacement.

Pros:

• Affordable and reliable.
• Long warranty period.

Cons:

• Basic design with no digital display.
• No replaceable battery option.

Amazon link

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Firehawk C07B-10Y Carbon Monoxide Alarm

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Key Features:

• Sealed Battery: The Firehawk C07B-10Y comes with a sealed 10-year lithium battery, which eliminates the need for battery replacements over its lifespan.
• End-of-Life Warning: The device features an end-of-life warning, ensuring that you are alerted when it’s time to replace the unit.
• Compact Design: It has a small, unobtrusive design that is easy to install anywhere in the home.

Pros:

• Maintenance-free with a sealed battery.
• Free-standing design
• Long battery life.

Cons:

• Non-replaceable battery means the entire unit must be replaced after 10 years.
• Higher upfront cost compared to models with replaceable batteries.

Amazon link

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FireAngel FA3820 Carbon Monoxide Alarm

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Key Features:

• Thermoptek Sensing Technology: This technology for enhanced reliability in detecting CO.
• 10-Year Sealed Battery: Like the Firehawk, the FireAngel CO-9X-10T-FF features a 10-year sealed battery, providing maintenance-free operation.

Pros:

• Innovative Sensing technology.
• Long-lasting, maintenance-free battery.
• Compact and easy to relocate.

Cons:

• No replaceable battery option.
• Slightly more expensive than other alarms with similar features.

Amazon link

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Honeywell R200C-1 Carbon Monoxide Alarm

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Key Features:

• Sealed 10-Year Battery: The Honeywell R200C-1 is equipped with a sealed 10-year lithium battery, ensuring maintenance-free operation throughout its lifespan.
• Electrochemical Sensor: It features a high-precision electrochemical sensor that offers reliable CO detection.
• Tamper-Resistant Design: The alarm is designed to be tamper-resistant, providing added security and preventing unauthorized removal.
• Loud Alarm: The device emits a loud 85dB alarm, which ensures that occupants are alerted to potential CO hazards.

Pros:

• Long-lasting sealed battery.
• Tamper-resistant design adds security.
• High-precision sensor for reliable detection.

Cons:

• Non-replaceable battery means the unit must be replaced after 10 years.
• Limited features compared to other models.

Amazon link

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Aico Ei208 Carbon Monoxide Alarm

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Key Features:

• Replaceable Lithium Battery: The Aico Ei208 is powered by a replaceable lithium battery, offering flexibility and cost savings over time.
• Electrochemical Sensor: It incorporates an electrochemical sensor known for its accuracy and reliability in detecting CO.
• Test/Hush Button: The alarm is equipped with a Test/Hush button, making it easy to perform regular tests and silence false alarms.
• Memory Feature: The Aico Ei208 features a memory function that records and stores CO detection events, useful for reviewing past incidents.

Pros:

• Replaceable battery offers flexibility and extended product life.
• Memory feature for tracking past CO incidents.
• Reliable and accurate electrochemical sensor.

Cons:

• Requires regular battery replacement.
• Not as compact as other models.

Amazon link

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