Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included
Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included
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Kidde

Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries Included

859 ratings
Kidde Battery-Operated 4-inch Smoke Detector & Carbon Monoxide Value Pack, Batteries IncludedKidde Battery Operated 4 inch Smoke Detector Carbon Monoxide Value Pack Batteries Included3 pack Kidde Battery Operated 4 inch Smoke Detector Carbon Monoxide Value Pack Batteries Included2 pack Kidde Battery Operated 4 inch Smoke Detector Carbon Monoxide Value Pack Batteries Included
Pack SizeSingle

Key item features

  • Dual Protection: Includes a smoke detector using photoelectric sensor technology for smoldering fires and a carbon monoxide detector with an electrochemical sensor.
  • Nuisance Prevention: Smoke detector's advanced sensor technology reduces false alarms commonly caused by cooking or shower steam.
  • Battery Operation: Both alarms run on included AA batteries, offering wire-free installation and continuous coverage during power outages.
  • Compact Design: The smoke detector's 4-inch design fits tight spaces like RVs, mobile homes, or crawlspaces.
  • Clear Alerts: Smoke alarm sounds an 85-decibel alert with a red LED; the CO alarm emits a distinct 4-beep pattern.
  • User Controls: Units feature test/reset buttons; the smoke detector includes a hush button and self-testing internal components.
  • Certified Safety: Alarms chirp for low battery and 10-year end-of-life. They are ETL Listed, meeting UL 217 10th, UL 2034 5th, and FCC standards.
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Customer ratings & reviews

4.5 out of 5 stars
stars
859 ratings182 reviews
How item rating is calculated
  1. 5 stars77% (658)
  2. 4 stars10% (85)
  3. 3 stars4% (36)
  4. 2 stars2% (21)
  5. 1 star7% (59)

Reviews summary

Pros

  • : Minimal hardware required for setup.
  • : Made with sturdy components that ensure a solid construction.
  • : Offers good value with combos.
  • : Offers extended usage with included batteries.
  • : This smoke alarm is smaller than typical devices.

Neutral

  • : Can detect threats quickly, but may trigger false alarms.
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Showing 1-3 of 182 reviews

Apr 16, 2026
Reviewer name: Walmart customer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

So far so good. We placed too close to the kitchen so if something burns it goes off but again not the best location on our part. I don't plan on burning any more meals so issue should resolve itself. Def Loud so i could hear it from the bedrooms if there was a fire. Purchased two sets so one can be set up in the garage too.

Helpful?592YD1HG86AU5232316196
reply from Kidde Expert

Thank you for the review, Toni! We're glad to hear everything is working well and that the alarm is loud enough to be heard throughout your home. It's also great to hear you're planning coverage for the garage, as that's an important area to monitor as well. As a reminder, we recommend cleaning and testing your units regularly to ensure they continue working properly. We appreciate you choosing Kidde!

Jul 24, 2025
Reviewer name: Cheri
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Glad I ordered this

The love that you get two for one price. Very easy to install and if you don't want to have it on the wall you can put it anywhere else to give you a peace of mind.

Helpful?592YD1HG86AU5232316196
Sep 19, 2025
Reviewer name: Sarah
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Affordable Can Be Better.

Searched for a new type of alarms for my home and am now in the process of trying this brand. I also have a fire extinguisher by Kidde. Other brands were more expensive and not always do you get somethings good based on a brand's cost.

Helpful?592YD1HG86AU5232316196
Current price is $38.97
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