First Alert Plug-In with Battery Back-up Electrochemical Carbon Monoxide Alarm(CO605)

Item no: 5351267 | 029054122001
290  Estimated 

FREE Pickup at your local Ace! Find my Ace. (details)
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Ship to home is available. Leaves warehouse in 1 to 2 bus. days. (details)
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  • Power Type: Plug-In with Battery Back-up
  • Sensor Type: Electrochemical
  • Product Type: Carbon Monoxide Alarm
  • Indoor and Outdoor: Indoor
  • Volts: 120 volts
  • CSA Listed: No
  • Test and or Reset Button: Yes
  • ETL Listed: Yes
  • UL Listed: Yes
  • Color Family: White
  • Number in Package: 1 pk
  • Detects Carbon Monoxide: Yes
  • Detects Smoke: No
  • 9V battery back-up
  • Front-access battery compartment
  • Low battery warning
  • End of life timer

This item can be shipped to your home. Or pickup this item at your local Ace Store for FREE*.

*Items shipped from our warehouse to stores in Alaska and Hawaii will receive a 70% shipping discount.

30-Day Return Guarantee

We want you to be fully satisfied with every item that you purchase from If you are not satisfied with an item that you have purchased (subject to the return exceptions below), you may return the item up to thirty days after the original purchase date to receive a refund (less shipping, handling and other charges). We recommend that you make returns of online purchases to an Ace retail store near you which will issue you a refund. If you do not have an Ace retail store near you, please contact a Customer Service Specialist by calling 1-866-290-5334 for complete return instructions. Please refer to our Return Instructions for more information about returning a purchase.

The item must be returned in good condition, in original packaging (whenever possible), with all paperwork (including product instructions or information and your packing slip), and parts and accessories to ensure full credit for purchase price (not including shipping and handling, gift-wrap, or additional charges). After 30 days from the original purchase date, please contact the manufacturer directly.

Return Exceptions:

30 Day Return Policy does not include Gift Cards, Magnolia Home Paint or gas-powered outdoor equipment.

  • Gift Cards cannot be returned for any reason.

  • Because each Magnolia Home Paint product is made to order, undamaged paint products are non-refundable. Magnolia Home Paint products purchased on cannot be returned for any reason. If your Magnolia Home Paint product arrives incorrect or damaged, please contact a Customer Service Specialist by calling 1-866-290-5334.

  • Gas-Powered Outdoor Equipment (such as tillers, edgers, mowers, string trimmers, blowers, tractors, generators, chainsaws, snow blowers, as well as all other gas powered chore equipment) may be returned within 30 days of the date of purchase, with original receipt, provided that it is in like-new condition. Gas-Powered Outdoor Equipment cannot be returned once gas or oil has been put in it, even if the equipment has been drained of these materials.

Please note that if your Gas-Powered Outdoor Equipment is defective or is not functioning properly, its service and warranty issues will be handled through the authorized service center. See Return Instructions for more information.

What people are saying

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by PowerReviews
First Alert® Carbon Monoxide Plug In Alarm (CO605)

(based on 2 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



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  • 2 Stars



  • 1 Stars



Reviewed by 2 customers

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(1 of 2 customers found this review helpful)


Good value, plug-in versitility

By Doc Jack

from Pittsburgh, PA

About Me Avid Do-It-Yourselfer

Verified Buyer


  • Compact Size
  • Plug-in Battery Backup


    Best Uses

    • Hallway

    Comments about First Alert® Carbon Monoxide Plug In Alarm (CO605):

    Provides superior protection at an affordable price.

    (12 of 14 customers found this review helpful)


    Feeling Safer

    By Sugargirl

    from Alameda, Ca

    About Me Avid Do-It-Yourselfer

    Verified Buyer


    • Early Warning
    • Inconspicuous
    • Reliable
    • Sensitive


      Best Uses

      • Living Room

      Comments about First Alert® Carbon Monoxide Plug In Alarm (CO605):

      Now that I have the carbon monoxide detector, I believe I have as secure an environment as possible. Living alone causes one to take care of all details to be safe. That action affects not only you (the consumer), but also gives family and friends a better sense of your safety.

      Displaying reviews 1-2

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