First Alert CO5-B10D: 10-Year Battery Carbon Monoxide Alarm with Digital Display
Protect your home against invisible carbon monoxide with the First Alert CO5-B10D. Featuring an electrochemical sensor, a backlit digital display, and a sealed 10-year battery, this carbon monoxide alarm provides continuous monitoring with zero battery changes required.
Advanced Electrochemical Sensing & Real-Time Display
The First Alert CO5-B10D features an advanced electrochemical sensor, which is the most accurate carbon monoxide detection technology available. Its backlit digital display provides real-time updates on CO levels and ambient room temperature, giving you clear insight into your home's air quality.
Sealed 10-Year Battery Power & Simple Operation
Equipped with a sealed 10-year lithium power battery, this carbon monoxide alarm guarantees a decade of uninterrupted protection without the hassle of annual battery swaps or low-battery chirps in the middle of the night. An integrated peak level memory feature will allow you to review the highest recorded CO concentration detected since the last reset.
Core Performance Features
10-Year Sealed Power
Runs continuously on a sealed 10 year lithium battery for zero battery replacements over the unit's lifespan.
Backlit Digital Display
Monitors CO levels in parts per million (PPM) alongside ambient room temperature for instant visibility.
Electrochemical CO Sensor
Utilizes precision technology to detect dangerous carbon monoxide gas levels accurately.
Peak CO Level Memory
Records and displays the highest level of carbon monoxide detected to help track subtle gas exposures.
Single Test/Silence Button
Enables convenient monthly diagnostic tests and allows you to mute temporary false alerts effortlessly.
10 Year Limited Warranty
Backed by First Alert’s standard 10 year limited warranty for dependable long-term peace of mind.
Recommended Placement
Place carbon monoxide alarms in central locations outside each sleeping area, near attached garages, and on every story of the residence including the basement. Mount units according to manufacturer guidelines, keeping them free from obstruction by drapes or furniture.
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