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First Alert CO710

First AlertCO alarmsRetrieved 7 November 2026

A CO alarm warns you; it doesn't make a generator or fuel heater safe indoors. Read the generator and carbon monoxide safety guide.

The First Alert CO710 is listed to UL 2034 and has a sealed 10-year lithium battery.[1]

Fits: CO warning with a sealed battery and a backlit digital display.

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Specs

SpecFirst Alert figure
ListingListed to UL 2034 Standard[1]
Power sourceSealed, non-replaceable lithium battery[1]
Battery life claim10 years, according to First Alert[1]
DisplayBacklit digital display: temperature, CO concentration and peak levels[1]
End-of-life signalEnd-of-life warning[1]
Alarm volume85 dB at 10 feet[1]

Good to know

  • First Alert lists an electrochemical CO sensor.[1]
  • First Alert describes the alarm as suitable for a tabletop or shelf. Follow its placement instructions.[1]
  • BlackoutSmart has not tested this product; specifications and claims come from the sources below.

Price

First Alert's site listed $54.99 on 2026-11-07. Prices change, so check the current price.[1]

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