Kidde

Kidde 4" Compact Battery Powered Smoke Detector, AA Batteries Included

|92 ratings
Item # 990353883
Current price is $34.98
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Highlights

  • Compact 4-inch design, ideal for small spaces
  • Reduces false alarms often caused by cooking
  • Battery Powered by 2-AA alkaline batteries (included)
    • kidde 4" compact battery powered smoke detector, aa batteries included Front-facing view of a round 4-inch white Kidde smoke detector with central vent grill, Kidde logo above and labeled circular test/hush button below, visible twist-and-click mounting base and retail box with red header and "2 AA BATTERY" callout behind; suitable for small rooms and often used to limit nuisance cooking alarms.
    Kidde 4" Compact Battery Powered Smoke Detector, AA Batteries Included
    Hero image 0 of Kidde 4" Compact Battery Powered Smoke Detector, AA Batteries Included, 0 of 14

    About this item

    Product details

    Experience the next level of fire safety with the Kidde 4-Inch Compact Battery Powered Smoke Detector, AA Batteries Included, model 10SDR. This compact smoke detector has enhanced sensing technology that reduces false alarms often caused by cooking and sends fast alerts that help give your family more time to get out safely. This smoke alarm’s 4-Inch design is smaller than the average 5-Inch design and is great for small spaces without sacrificing the key features you need. Comprehensively tested and designed to the latest UL standard for safety and reliability, the smoke alarm is powered by 2 replaceable AA alkaline batteries (included) for continual detection even during outages. Batteries should be replaced every 6 months or when the alarm sounds a low battery chirp. The red LED light blinks to indicate the smoke alarm is on and working. When smoke is detected the LED light will flash in time with the loud 85-decibel alarm to help you seek safety. A test-hush button allows you to test the battery operations as well as silence nuisance alarms, should they occur. In addition, it’s self-testing and easy to install with the included twist-and-click mounting bracket. This Kidde smoke alarm is equipped with end-of-life notifications that will beep to remind you it’s time to replace it at the of its 10-year lifespan. Meets requirements of 9th Edition UL 217 and FCC. Does not meet requirements for CSFM.
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    Specifications

  • Enhanced Sensing Technology - Reduces false alarms often caused by cooking.
  • Fast Alerts - Upon sensing smoke or fire, an 85-decibel alarm sounds & a red LED will illuminate.
  • Simple Installation - No wiring needed, install with the included twist-and-click mounting bracket.
  • Test & Hush button makes it easy to test the smoke detector and silence false alarms, should they occur.
  • Self-Testing - For added assurance, internal components ensure alarm is always operating as expected. (Self-testing is not a substitute for a weekly manual push test of the alarm.)
  • Battery Replacement - A low battery chirp alerts you when batteries need replacing.
  • End-of-Life Alarm - Alarm sounds as a reminder when it is time to replace the alarm after 10 years of use after its original power-up date.
  • Red LED Light - Displays a single red LED light that blinks every 60 seconds to indicate the alarm is on and working.
  • 10-Year Limited Warranty
  • Meets requirements of the following authorities - Underwriters Laboratories (UL), Federal Housing Authority (FHA), Housing and Urban Development (HUD), National Fire Protection Association (NFPA)
  • Comprehensively tested & certified to meet requirements of UL 217 8th & 9th Edition, and FCC standards

    • Warnings and disclaimers

    Ingestion Hazard

    This product contains a battery. Death or serious injury can occur if ingested. A swallowed battery can cause Internal Chemical Burn in as little as 2 hours. Keep new and used batteries OUT OF REACH OF CHILDREN. Seek Immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body.

    Member ratings & reviews

    4.5 out of 5 stars
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    92 ratings92 reviews
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    1. 5 stars80% (74)
    2. 4 stars8% (7)
    3. 3 stars2% (2)
    4. 2 stars1% (1)
    5. 1 star9% (8)
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    Showing 1-3 of 92 reviews

    Jul 29, 2026
    Reviewer name: Chas
    5 out of 5 stars
    5 out of 5 stars review

    Verified Purchase

    Small, but really loud. They work really well.

    I was kind of nervous when I saw the size of box that two of these came in, but when my husband hooked them up and tested them and we heard the sound they put off we realized that size does not matter. It is loud enough for us to hear from far away. We have one at one towards our room and one by the kids' room. I'm very happy with this purchase. We replaced our much older, much bigger ones for these. I couldn't be happier, plus they come with batteries. What else could you ask for.

    Review from walmart.com
    Helpful?4EW9A5XL3DG813849772213
    reply from Kidde Expert

    We're so glad you're happy with the look and loudness of your new alarms! Thanks for making Kidde a part of your home safety plan. As a best practice, we recommend testing your new alarms once a month!

    Aug 6, 2026
    Reviewer name: Sissy
    5 out of 5 stars
    5 out of 5 stars review

    Verified Purchase

    Great value! Getting 2 for the price was good. Easy to install and they’re loud!! Would buy again. We have tested them and they work great.

    Review from walmart.com
    Helpful?4EW9A5XL3DG813849772213
    reply from Kidde Expert

    Thanks for sharing, Sissy. We’re glad you found the Smoke Alarms easy to install and a great value. It’s also great to hear you tested them after installation to make sure they’re ready to help protect your home. We appreciate you choosing Kidde!

    Jan 1, 2026
    Reviewer name: James
    5 out of 5 stars
    5 out of 5 stars review

    Verified Purchase

    Reliable brand

    I wanted UL listed reliably designed alarms for my workshop and garage. I installed these on new years so it will be easy to remember to replace the two cheap AA cells each year as a routine. Low battery chirping in those locations will not be too bothersome. The mounting plates are easy to install. In some cases the power goes out (Blown circuit breaker caused by a shorting appliance) before the alarm can sound so AC detectors are of limited value. Lithium batteries last much longer but they also cost much more and I recycle all of my used batteries anyways. I tested these with cigarette smoke and they responded fast. Keep in mind that 10 year old detectors should always be replaced. I have no fire insurance and 5 smoke detectors as well as 4 extinguishers and three fire blankets.

    Review from walmart.com
    Helpful?4EW9A5XL3DG813849772213
    reply from Kidde Expert

    Thanks so much for your thoughtful feedback, James, and for taking such a proactive approach to fire safety!