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Battery-powered devices, however, may need to be replaced every 3 to 5 years.
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In exchange for the work of wiring in a carbon monoxide alarm, you’ll get an extended lifespan of 7-10 years. Battery-operated alarms are easy to install and budget-friendly, but have disadvantages. What to Look for in a Carbon Monoxide Detector Power SourcesĬarbon monoxide (CO) detectors can be battery-operated, plug-in, or hardwired (with backup batteries for power failures). As a parent of young children, I’ve used and regularly tested environmental monitoring devices like smoke and carbon monoxide alarms on every level of my home. Along with writing disaster preparedness guides for homeowners, I’ve also done extensive research on air quality and pollution. Show more The Expert: I’ve worked in the home security industry for the better part of a decade testing, reviewing, and writing about home security and home safety equipment.
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