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First Alert Battery Operated Carbon Monoxide Detector


SKU 32154351 - The First Alert CO400 Carbon Monoxide Alarm utilizes an electrochemical carbon monoxide sensor that lasts for up to five years to detect carbon monoxide. This carbon monoxide detector is battery operated, making it portable and easy to use, even in the event of a power outage. When carbon monoxide levels become elevated, a loud 85-decibel alarm alerts you to the threat.

We apologize, but we can no longer sell or ship to CA as a result of PROP 65

Pricing and availability may vary by store. Please visit our FAQ and support pages for details.

Product Overview

  • CO detector alerts you to carbon monoxide
  • Battery-operated detector works almost anywhere
  • Loud 85-decibel alarm sounds when CO levels are detected
  • Detector features a single test/silence button for efficient testing


Learn More
Tools & Hardware TypeFire Protection
Fulfillment LocationOnline, Pickup at Store
Manufacturer NumberCO400
BrandsFirst Alert


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