First Alert Dual Power Carbon Monoxide Detector Alarm Digital Display CO615. (b)

US $19.00
or Best Offer
Condition:
Used

Additional service available

Shipping:
Free USPS Ground Advantage®.
Located in: Everett, Washington, United States
Delivery:
Estimated between Fri, Nov 7 and Wed, Nov 12 to 94104
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Returns:
Seller does not accept returns.
Payments:
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eBay item number:146221720292
Last updated on Oct 25, 2025 09:47:10 PDTView all revisionsView all revisions

Item specifics

Condition
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is ...
Number of Batteries
2
Battery Included
No
Custom Bundle
No
Manufacturer
First Alert
Smart Home Compatibility
Does not apply
Smart Home Protocol
Does not apply
UPC
0029054000712
Brand
First Alert
Type
Carbon Monoxide Detector
Power Source
Wall Plug-In, Battery
Color
White
Model
First Alert CO615
MPN
CO615
Features
Battery Backup
Category

About this product

Product Identifiers

Brand
First Alert
MPN
CO615
UPC
0029054000712
Model
First Alert CO615
eBay Product ID (ePID)
13032710124

Product Key Features

Power Source
Wall Plug-In, Battery
Features
Battery Backup
Color
White
Type
Carbon Monoxide Detector

Item description from the seller

About this seller

Worldofusedelectronics

95.9% positive feedback2.0K items sold

Joined Feb 2019

Detailed seller ratings

Average for the last 12 months
Accurate description
4.7
Reasonable shipping cost
5.0
Shipping speed
4.9
Communication
5.0

Seller feedback (738)

All ratingsselected
Positive
Neutral
Negative
  • t***_ (48)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Quick shipping and nicely packaged. Great communications. Item was just as described. Packaging was very good. Definitely A+ seller! Smooth transaction. JW
  • t***s (367)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Packaged very well, received no damage in transport. shipped out quickly, just as described. thank you great value, working perfectly. A+Ebay seller
  • k***k (2107)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    X2 Power Automatic Battery Trickle Charger / Tender Works Great!! As described, Fast Ship, Well packaged. Great price! Easily found the Manual on line with no problem. A++ Seller!!

Product ratings and reviews

4.8
55 product ratings
  • 49 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 4 users rated this 3 out of 5 stars
  • 1 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

  • Top favorable review

    So far, so good

    Online reviews are not a statistical sampling. I’ve seen a lot of concerns on this product, but after a few days with it, I’m happy enough. My two biggest concerns are: 1) will this alert us if CO levels are elevated in the house? From the material packed with this, it sure seems as though First Alert has done its homework. 2) When the two AA batteries backing this up are dying, will this wake us up at 3 AM, as so many of our fire alarms do? From the instructions, it looks like if—oh, heck, when—that happens, the Silence button will shut up the device for 8 hours. And with the readout screen, we’ll be able to tell that this is the device annoying us, rather than one of the others. It’s supposed to last 7 years. Some reviews indicate these don’t always last that long. I’m willing to take ...

    Verified purchase: YesCondition: Pre-OwnedSold by: slone_liquidation

  • Top critical review

    battery back-up is an issue

    the whole benefit to a plug-in detector is long-term reliability 9assuming that power doesn't go out!). with the battery back-up, when the battery begins to fail, then a chirp is emitted, even though there is no problem with the availability of power. I also own other brands of plug in units that continue to function as long as there is electrical power, regardless of the life of the battery. as such, I would NOT recommend this unit because it requires attention when the battery begins to run down.

    Verified purchase: YesCondition: NewSold by: quality-choice

  • Easy to understand with digital readout

    I has a similar model by the same manufacturer and it lasted 7 years. I guess that is about the usual life of a detector. The only issue I had was it was hard to understand. When a minor alarm went off I had to find the instructions to figure out what the alarm meant. I decided to go with the digital version this time and I am glad I did. Seems much easier to comprehend. I expect the same quality and life from this unit.

    Verified purchase: YesCondition: NewSold by: aomiller

  • Nice Product

    Perfect addition for another area of my home. Works easily and provides additional peace of mind,

    Verified purchase: YesCondition: New

  • Needed for safety.

    A carbon monoxide alarm is a must have for any home. This one is very easy to install. Put in the included back up batteries and plug it in. That’s all there is to it. I put in the wall outlet in the kitchen outside the door to the garage.

    Verified purchase: YesCondition: NewSold by: donovan230