First Alert® CO Detector (CO615)

Item no: 5208962 | 029054856180
390  Estimated 

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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
  • Test and or Reset Button: Yes
  • Color Family: White
  • Indoor and Outdoor: Indoor
  • CSA Listed: No
  • Number in Package: 1 pk
  • Detects Smoke: No
  • UL Listed: Yes
  • Volts: 120 volts
  • Detects Carbon Monoxide: Yes
  • Front-access battery compartment.
  • Memory chip stores highest levels permanently
  • Silencer button alarms if levels persist
  • Self testing systems alerts if malfunctions
  • 3 indicator light
  • Low battery warning
  • End of life timer
  • 7 year limited warranty

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 (excluding Gift Cards and gas-powered outdoor equipment*), you may return the item up to thirty days after the original purchase date to receive a store credit (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 your store credit. 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 boxes (whenever possible), and with all paperwork, parts and accessories to insure full credit. After 30 days, please contact the manufacturer directly.

*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.

What people are saying

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by PowerReviews
First Alert® CO Detector (CO615)

(based on 2 reviews)

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  • 1 Stars



Reviewed by 2 customers

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(1 of 1 customers found this review helpful)



By Doreen

from Durham, NC

About Me Casual Do-It-Yourselfer


  • Accurate
  • Compact
  • Discreet
  • Easy To Set Up


    Best Uses

    • Early Warning
    • Safety

    Comments about First Alert® CO Detector (CO615):

    I bought this product as soon as I moved into my home. Home is 19 years old. I disconnected all ADT monitors so I bought this CO2 monitor since there are 2 gas fireplaces, gas stove and gas heat. 3 months after moving in, alarm goes off 5am one morning. Called gas company and they identified a leak coming from the valve in one of the fireplaces. Can't imagine what would have happened without this product! Thanks!

    • Primary use:
    • Personal

    (12 of 16 customers found this review helpful)


    TV remote controler

    By Jeff

    from Vermont

    About Me Casual Do-It-Yourselfer


    • Sensitive


    • Remote control

    Best Uses

    • Bedrooms
    • Living Room

    Comments about First Alert® CO Detector (CO615):

    It was brought up that a fire department responded to a CO alarm recently and discovered that the First Alert CO detector model CO615 can be activated by a TV remote that is pointed at the unit and the channel up/down or volume up/down button held for five seconds. This is apparently a feature to test or silence the unit. This is the first any of us were aware of this, however it is noted in the 615 owners manual.

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