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First Alert CO400 Carbon Monoxide Alarm

First Alert CO400 Battery Operated Carbon Monoxide Alarm

Price $

IVA Included


The First Alert CO400 Carbon Monoxide Alarm utilizes an electrochemical carbon monoxide sensor, for increased accuracy,that lasts for up to five years to detect carbon monoxide. This carbon monoxide detector is battery powered, making it portable and easy to use anywhere, giving you peace of mind even during power outages. When carbon monoxide levels become elevated, a loud 85-decibel alarm alerts you to the threat. No installation required and attractive design allows unit to be added anywhere in your home. 5-year manufactures limited warranty.


  • Electrochemical carbon monoxide sensor
  • Battery powered works during power outages (9V replaceable battery included)
  • Front access battery door makes changing battery easier
  • Silence and test button
  • No installation required, just place or mount almost anywhere
  • Alarm action chart instructs on what to do if an alarm sounds
  • UL listed
  • 5 year manufactures limited warranty
  • Loud 85 decibel alarm
  • 10" x 6.63" x 2"
  • 0.65 lbs



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