First Alert SA350B, Battery Ionization Sensor Smoke Alarm 3 Pack
First Alert SA350B, Battery Ionization Sensor Smoke Alarm 3 Pack
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First Alert

First Alert SA350B, Battery Ionization Sensor Smoke Alarm 3 Pack

|8 ratings
First Alert SA350B, Battery Ionization Sensor Smoke Alarm 3 PackFirst Alert SA350B Battery Ionization Sensor Smoke Alarm 3 PackFirst Alert Smoke Alarm SA350B Lithium Battery Ionization Smoke Alarm 10 Year Sealed Tamper Proof Battery 2 PACK 0827 SA340CN SA340CNFirst Alert Smoke Alarm SA350B Lithium Battery Ionization Smoke Alarm 10 Year Sealed Tamper Proof Battery 6 PACK 0827 SA340CN SA340CN
Count:3-Out of stock

Key item features

  • Extended Power: Features a built-in 10-year 3-volt lithium power cell, providing long-lasting performance without requiring battery changes for a decade.
  • Efficient Detection: Utilizes an ionization sensor for efficient smoke detection, ensuring a quick response to potential smoke hazards.
  • Enhanced Safety: Incorporates a tamperproof design that prevents batteries from being removed, thereby enhancing the unit's safety and continuous operation.
  • Simple Installation: Includes an easy mounting bracket for straightforward installation, facilitating quick and hassle-free setup.
  • Timely Replacement: Equipped with an alarm end-of-life indicator, which alerts users when it's time to replace the unit for continued protection.
  • Convenient Operation: Features a single test/silence button, allowing users to quickly mute nuisance alarms caused by cooking smoke or shower steam.
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Current price is $85.99
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Customer ratings & reviews

4.3 out of 5 stars
stars8 ratings5 reviews
How item rating is calculated
  1. 5 stars63% (5)
  2. 4 stars25% (2)
  3. 3 stars0% (0)
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  5. 1 star13% (1)
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Showing 1-3 of 5 reviews

Dec 10, 2025
Judy
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Count: 1
Sold and shipped byTop Rated Seller.
5 out of 5 stars review

Verified Purchase

I purchased these to replace my older ones that started to show signs of needing replaced. easy installation, just screwed it on to existing base and love the 10 year battery. only downfall is you have to replace the whole unit and not just the battery.

Incentivized Review
Helpful?4QK4TUN2P91F563934668
Sep 13, 2025
Mike
Item details
Count: 1
Sold and shipped byTop Rated Seller.
5 out of 5 stars review

Verified Purchase

Smoke Detectors

I bought these smoke detectors to replace 10 year-old ones. They were exact replacements, did not have to install new bases. Convenient online ordering from Walmart. Purchase price was fair. Delivery was on time smoke detectors i bought these smoke detectors to replace 10 year-old ones. They were exact replacements, did not have to install new bases. Convenient online ordering from Walmart. Purchase price was fair. Delivery was on time .

Incentivized Review
Helpful?4QK4TUN2P91F563934668
May 19, 2023
Lou77
5 out of 5 stars review

Verified Purchase

10 yr smoke alarms

We love the 10 year smoke alarms. Our last 10!year ones were due to be replaced. This trio was perfect.

Helpful?4QK4TUN2P91F563934668