Year-End SaleEnds 1/1/26. Limited quantities. No rainchecks.

Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

Your price for this item is $49.99

Customer reviews

Rating 4.7 out of 5 stars with 607 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

Pros mentioned filter

Cons mentioned filter

95%would recommend to a friend

Customers are saying

Customers praise the Smoke and Carbon Monoxide Alarm's ease of use and installation, as well as its compatibility with Ring and other smart home systems. Many appreciate its affordable price and the generally good battery life reported. While some experienced occasional unexpected alarms, the majority found the alarm to be reliable and effective at detecting both smoke and carbon monoxide.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 30 Showing 581-600 of 607 reviews
  • Rated 2 out of 5 stars

    Could do better

    |
    |
    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Doesn’t pick up smoke right away and alarm. Held a flame around it, under it, smoke around it, took at least a full minute to finally sound the alarm. Says it has false alarm prevention but my hard wired alarm immediately sounds with smoke to it, not this one. Alerts phone thru ring which is nice but problem is half the house would be on fire before it notifying.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    Good alarm system

    |
    |
    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works as intended, recommended for anyone looking for decent alarm

    I would recommend this to a friend
    • Brand response from FirstAlertProductExpert
      Posted .

      Thank you for your feedback. We apologize for any inconvenience. We’re here to help. We would like to talk to you further to better understand your experience. Please don’t hesitate to reach out to us at First Alert at 1 (800)-323-9005. We look forward to hearing from you. FirstAlert

  • Rated 1 out of 5 stars

    Faulty devices, not worth your money

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought 12 of this alarms to cover basically every corner of my house, 4 of them died within the first year. They just keep triggering the smoke sensor, you remove the batteries, as soon as you put back them, it goes off again. I got only one replaced under warranty, it was very cumbersome process, so I didn't even bothered with the other 3.

    No, I would not recommend this to a friend
    • Brand response from FirstAlertProductExpert
      Posted .

      Hi BernardoS, we are sorry to hear about this. This is not what you should expect. We will be happy to provide recommendations and troubleshooting steps to prevent nuisance alerts and help with the replacement of your units. Please reach out to First Alert Customer Support at 1 (800)-323-9005 and we will be happy to assist you. - Maria FirstAlert

  • Rated 3 out of 5 stars

    Had to return

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Had to return. Was a battery only alarm and I needed a hard wire

    I would recommend this to a friend
  • Cons mentioned:
    False alarms

    Rated 1 out of 5 stars

    Worthless, false alarms

    |
    |
    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have 7 of these connected to ring alarm. 5 of them have false alarmed. Once i didnt get to my phone quick enough and the fire department almost broke into my house. These detectors are trash.

    No, I would not recommend this to a friend
  • Cons mentioned:
    False alarms

    Rated 1 out of 5 stars

    Good price but causes false alarm

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    False alarm woke everyone at night and almost caused the fire department to come over.

    No, I would not recommend this to a friend
    • Brand response from FirstAlertProductExpert
      Posted .

      Thank you for your feedback. We apologize for the inconvenience. Several things could have caused the false alarm, like improper placement or the unit requiring a cleaning. We would like to speak to you to better understand what may have caused this. Please don’t hesitate to reach out to our First Alert Consumer Support team at 1 (800)-323-9005 to assist with a troubleshooting or a possible replacement. FirstAlert

  • Rated 1 out of 5 stars

    Manager

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Wireless doesn’t work in most houses. I was very disappointed

    No, I would not recommend this to a friend
    • Brand response from FirstAlertProductExpert
      Posted .

      Hi, thank you for taking the time to rate the First Alert Smoke and Carbon Monoxide Alarm. We appreciate the feedback and will utilize your comments as we update our products. FirstAlert

  • Rated 4 out of 5 stars

    It's a good product.

    |
    |
    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It's very easy to set up but it's a bit hard to connect to the Ring app. However, I like it.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Not good

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Got three of them last year ones not working but the other two still are

    No, I would not recommend this to a friend
    • Brand response from FirstAlertProductExpert
      Posted .

      Hi, we're sorry to hear you're having trouble with one of your units. We'd like to take a closer look at this issue, our team can be reached at 1 (800) 323-9005. -Joey FirstAlert

  • Rated 2 out of 5 stars

    Calicosue51

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Too hard to understand direction's still don't t know if it is working correctly and to tell you the true do not care anymore

    No, I would not recommend this to a friend
  • Rated 2 out of 5 stars

    Ring smoke carbon detector

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Difficult to setup an connect just using as a detector couldn’t connect to my other ring devices to alert when I’m away from home

    No, I would not recommend this to a friend
  • Rated 2 out of 5 stars

    Alarm paper weight

    |
    |
    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Quit working after short period of use. Maybe I bought a dudd, but cannot return it now. Buyer beware....

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Battery Hog

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Have changed the batteries twice in the last 60 days. Both times in the middle of the night. Will be returning the product.

    No, I would not recommend this to a friend
    • Brand response from FirstAlertProductExpert
      Posted .

      Thank you for your feedback, Keith. We apologize for any inconvenience. We’re here to help. We would like to talk to you further to better understand your experience. Please don’t hesitate to reach out to us at First Alert at 1 (800)-323-9005. FirstAlert

  • Rated 1 out of 5 stars

    Bad

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    You can only buy small items they are not reliable for major appliances like washer and dryer . After a month I had to cancel

    No, I would not recommend this to a friend
    • Brand response from FirstAlertProductExpert
      Posted .

      Hi IsabellaG, thank you for bringing this to our attention. If you need assistance with your detector, you can contact First Alert Customer Support at 1 (800)-323-9005 and we will be happy to help you. - Maria FirstAlert

  • Rated 1 out of 5 stars

    Non functioning WiFi connection

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Didn’t connect to my WiFi. Wasn’t able to connect it to my Ring system at All & Best Buy wouldn’t allow me to exchange it. Buying all home needs from Home Depot from now on.

    No, I would not recommend this to a friend
    • Brand response from FirstAlertProductExpert
      Posted .

      Thank you for your feedback. We apologize for any inconvenience. We’re here to help. We would like to talk to you further to better understand your experience. Please don’t hesitate to reach out to us at First Alert at 1 (800)-323-9005. We look forward to hearing from you. FirstAlert

  • Rated 1 out of 5 stars

    Mr

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Zwave does not work not enough information how zwave can work which device is compatible I don't recommend buy other than this cheaper one u can buy two of them on same price

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Expensive

    |
    |
    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    You need a ring alarm to be linked to your ring app

    No, I would not recommend this to a friend
    • Brand response from FirstAlertProductExpert
      Posted .

      Thank you for your feedback. We apologize for any inconvenience. We’re here to help. We would like to talk to you further to better understand your experience. Please don’t hesitate to reach out to us at First Alert at 1 (800)-323-9005. We look forward to hearing from you. FirstAlert

  • Pros mentioned:
    Ease of use

    Rated 4 out of 5 stars

    Not perfect, but a great z-wave alarm!

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Pairs perfectly with z-wave Home Assistant. The one thing I don't like about it is that the manual claims it measures different levels and alerts according to different measures. However, it does NOT tell you what the levels actually are. I really wish it would tell me when the presence of these gasses were present along with the levels. Even still, I liked this enough that I put them in every main room of my house. They are WAY too loud for bedrooms unfortunately. It's not just "wake you up" loud - it's "this is painful to the ears" loud. Otherwise I'd put one in every room.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Easy install

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to install and seems to work well from what we can tell

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Functional

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Arrived and works as described. While this wasn't the exact model I was looking for, it does the operation/s necessary. Definitely not the best, but its a good 2nd choice.

    I would recommend this to a friend