First Alert 1039752, White, Digital Display, Carbon Monoxide Alarm
First Alert 1039752, White, Digital Display, Carbon Monoxide Alarm
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First Alert

First Alert 1039752, White, Digital Display, Carbon Monoxide Alarm

Key item features

First Alert 1039752, White, Digital Display, Carbon Monoxide Alarm

  • Detects carbon monoxide levels to help keep your home safe
  • Features a digital display for easy reading of CO levels
  • Includes a built-in temperature sensor for added functionality
  • Equipped with a 10-year sealed battery for long-lasting power
  • Compact design allows for easy installation in any room
Current price is $45.79
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Customer ratings & reviews

4.8 out of 5 stars
stars98 ratings62 reviews
How item rating is calculated
  1. 5 stars86% (84)
  2. 4 stars9% (9)
  3. 3 stars4% (4)
  4. 2 stars0% (0)
  5. 1 star1% (1)

Reviews summary

Pros

  • : Requires no tools or complex process.
  • : Features a space-saving and contemporary style.
  • : Offers significant savings compared to similar products.
  • : Setup process is simple and flexible with various placement options.
  • : Lasts up to 10 years without replacement.

Neutral

  • : Can be silent, but may initially chirp loudly.
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Showing 1-3 of 62 reviews

Apr 22, 2026
KiloRomeo
Item details
Size: 1
5 out of 5 stars review

Verified Purchase

This is a great CO detector!

This is our second First Alert CO detector stand alone model. This particular model has a closed battery and the last one gave us flawless service for well over 10 years. At the end of its life it will start beeping, it sounds different from a smoke detector and is very obvious that it is no longer in service. We were bummed at first because although we have smoke/CO detectors in our house, this little unit displays the temperature and we grew to depend on that display. We were thrilled to find the same model is still being produced. Shipping was fast and we have our little buddy back in place. Probably not a bad idea to have redundant CO detection since CO is a ruthless and silent killer.

Helpful?7BSMLZDPW6M9947342692
Apr 2, 2025
Donna
Top Reviewer
Item details
Size: 1
5 out of 5 stars review

Verified Purchase

Definite improvement over previous one

Great feature on this one versus my previous one is it actually tells you what the temperature in your home is so it's much more convenient than having to go look at the thermostat on the wall in the hallway. It's pretty much the same size as the one I had before but it is just a teensy bit smaller I guess because just one of the screws had to be moved over on the wall just a smidge to fit. There's no assembly. You don't have to put a battery in it. It comes with a battery already in it Thank you so much!

Helpful?7BSMLZDPW6M9947342692
Apr 1, 2026
Walmart customer
Item details
Size: 1
5 out of 5 stars review

Verified Purchase

very easy install or sits on shelf. Bought these for my duplex home . Home is all electric appliances however we do heat with propane.

Helpful?7BSMLZDPW6M9947342692