Skip to main content
PetLawn & GardenTruck & AutomotiveClothingPoultryHeating & CoolingHorseSporting GoodsOutdoor Power EquipmentFencing & GatesLivestockOutdoor LivingPet & Animal PharmacyToolsHome ImprovementFarm & RanchBoots & ShoesTrailers & TowingHome Decor & FurnitureWild Birds & WildlifeToysGift CardsServices Propane RefillTrailer RentalGarden CenterFeed CenterSame Day DeliveryPetVet ClinicPet WashGrooming at PetsenseDog Training at PetsenseTractor Supply RxPet InsuranceWag!

"Savings and Offers"

Weekly AdSaleClearance

"More Options"

Weekly AdWhat's NewTractor Supply AppEarn Rewards with Neighbor's ClubHometown HeroesLife Out Here BlogTSC Exclusive BrandsTop BrandsClearance ItemsBattery FinderOutdoor Power Equipment Parts FinderHitch Finder

Spend $49.99 to unlock Free Delivery on most orders

|
Learn More
Order statusTSC Credit CardsWhat’s newPetsenseWeekly Ad
​

Sign In / Enroll

Get rewarded!

​
Menu

Search

Home

Sign In

Cart
0.0
(0)
0.0 out of 5 stars.
A woman outside with a dog
A woman outside with a dog
  1. Home
  2. /
  3. Home Improvement
  4. /
  5. Smart Home
  6. /
  7. Smart Smoke & Carbon Monoxide Detectors
  8. /

  9. First Alert Sealed 10 Year Battery Smoke Alarm with Safety Path Light and Slim Profile

  1. Home
  2. /
  4. /
  5. Smart Smoke & Carbon Monoxide Detectors

First Alert Sealed 10 Year Battery Smoke Alarm with Safety Path Light and Slim Profile

Shop all First Alert

  • New Arrival

First Alert Sealed 10 Year Battery Smoke Alarm with Safety Path Light and Slim Profile

Item # 6126817

First Alert First Alert Sealed 10 Year Battery Smoke Alarm with Safety Path Light and Slim Profile
First Alert First Alert Sealed 10 Year Battery Smoke Alarm with Safety Path Light and Slim Profile
$44.99

Color:

Notice:
This Item cannot be shipped to CA.
Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Shop all First Alert

  • New Arrival

First Alert Sealed 10 Year Battery Smoke Alarm with Safety Path Light and Slim Profile

Item # 6126817

First Alert First Alert Sealed 10 Year Battery Smoke Alarm with Safety Path Light and Slim Profile
First Alert First Alert Sealed 10 Year Battery Smoke Alarm with Safety Path Light and Slim Profile

$44.99
financeCard Logo
New Cardmembers earn a $20 Reward‡ with qualifying purchase of $20 or more plus earn 5% in Rewards+ on this purchase. Valid through 8/9/26.

Color:

This item is available online only

Delivery to

Free standard delivery on online footwear & Clothing purchases of $49 and over.

​
Notice:
This Item cannot be shipped to CA.
Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Illuminate your path to safety with the First Alert® SM210L Sealed 10-Year-Battery Smoke Alarm with Safety Path Light. The SM210L smoke alarm also features our Precision Detection advanced sensing technology. It complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency. The smoke detector also has a slim profile, measuring only half the depth of a standard alarm. Its sleek, modern design seamlessly blends into most decor and is easy to install throughout your home. And the 10-year lithium battery means no battery replacements for a decade — the end-of-life warning lets you know when it is time to replace the alarm.

  • Provides early warning to help you and your loved ones safely escape
  • 10-year sealed battery eliminates battery replacements and low battery chirps for the life of the detector; end-of-life warning lets you know when it's time to replace the alarm
  • Safety path light helps illuminate your path to safety in case of emergency
  • Precision Detection advanced-sensing technology reduces nuisance alarms and detects smoke from synthetic materials which burn hotter and faster, leaving you less time to safely evacuate
  • Convenient test/silence button for efficient testing to ensure the detector is working properly
  • Slim profile design is half the depth of a standard alarm for more installation options
  • Alarm sound level: 85 dB at 10 ft.
  • Includes mounting bracket and installation screws
BrandFirst Alert
Country of OriginImported
Battery SizeOther
FeaturesSealed 10-year lithium battery; Safety path light; Precision Detection technology; Slim profile design; 85 dB alarm sound; Test/silence button; Includes mounting bracket and screws
Network CompatibilityNot Applicable
Package Quantity1
Power TypeBattery
Product Height8.50 in.
Product Length6.75 in.
Product Weight0.435 lb.
Product Width1.50 in.
Sensor TypePhotoelectric
Smart CompatibilityNone
Warranty10 year limited
ColorWhite
Manufacturer Part NumberFAT1046747
No questions have been asked about this product.

No questions have been asked about this product.

Q&As

No questions have been asked about this product.

No questions have been asked about this product.

Similar Items

  1. First Alert Sealed 10 Year Battery Smoke Alarm
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert Sealed 10 Year Battery Smoke Alarm

    $28.99
  2. First Alert Sealed 10 Year Battery Micro Smoke Alarm
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert Sealed 10 Year Battery Micro Smoke Alarm

    $44.99
  3. First Alert Sealed 10 Year Battery Smoke Alarm with Voice and Location Alerts and Slim Profile
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert Sealed 10 Year Battery Smoke Alarm with Voice and Location Alerts and Slim Profile

    $44.99
  4. Top Rated
    First Alert Battery-Operated Smoke Alarm with Slim Profile
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    First Alert Battery-Operated Smoke Alarm with Slim Profile

    $24.99
  5. First Alert 10-Year Battery Smoke Alarm, Slim Profile Design
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert 10-Year Battery Smoke Alarm, Slim Profile Design

    $29.69
    Was $32.99Save $3.30
  6. First Alert Sealed 10 Year Battery 2 in 1 Smoke and CO Alarm
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert Sealed 10 Year Battery 2 in 1 Smoke and CO Alarm

    $49.99
  7. First Alert Battery-Operated Smoke Alarm
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert Battery-Operated Smoke Alarm

    $21.99
  8. First Alert Battery-Operated 2-in-1 Smoke Alarm and CO Alarm
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert Battery-Operated 2-in-1 Smoke Alarm and CO Alarm

    $40.99
  9. First Alert Dual-Power Carbon Monoxide Plug-in Alarm with Digital Display
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert Dual-Power Carbon Monoxide Plug-in Alarm with Digital Display

    $49.99
  10. First Alert Battery-Operated 2-in-1 Smoke and CO Alarm
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert Battery-Operated 2-in-1 Smoke and CO Alarm

    $49.99
  11. First Alert Combo Explosive Gas and Carbon Monoxide Alarm with Digital Display
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert Combo Explosive Gas and Carbon Monoxide Alarm with Digital Display

    $58.49
    Was $64.99Save $6.50
  12. Top Rated
    First Alert 10-Year Battery Carbon Monoxide Alarm with Digital Temperature Display
    4.9 out of 5 stars with 30 reviews
    4.9 (30)

    First Alert 10-Year Battery Carbon Monoxide Alarm with Digital Temperature Display

    $53.99
    Was $59.99Save $6.00

Items You May Like

  1. First Alert Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert Interconnect Hardwire 2-in-1 Smoke and CO Alarm with Battery Backup

    $69.99
  2. First Alert Battery-Powered Carbon Monoxide Alarm with Backlit Digital Display
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    First Alert Battery-Powered Carbon Monoxide Alarm with Backlit Digital Display

    $53.99
  3. Kidde Detect 5 in. Combo Alarm, 10 YR, Battery
    3.9 out of 5 stars with 65 reviews
    3.9 (65)

    Kidde Detect 5 in. Combo Alarm, 10 YR, Battery

    $62.99
  4. Kidde Intelligent Detector Combinations Smoke Alarm, Front-Load Battery, Voice Warning
    4.1 out of 5 stars with 27 reviews
    4.1 (27)

    Kidde Intelligent Detector Combinations Smoke Alarm, Front-Load Battery, Voice Warning
  5. Kidde Smoke Alarm Detector AA Battery
    4.6 out of 5 stars with 52 reviews
    4.6 (52)

    Kidde Smoke Alarm Detector AA Battery

    $29.99
  6. Top Rated
    Kidde Detect 5 in. Combo Alarm, Battery
    4.8 out of 5 stars with 49 reviews
    4.8 (49)

    Kidde Detect 5 in. Combo Alarm, Battery

    $52.99
  7. Top Rated
    Kidde COB
    4.9 out of 5 stars with 39 reviews
    4.9 (39)

    Kidde COB

    $26.99
  8. Top Rated
    Kidde Plug in carbon monoxide
    4.9 out of 5 stars with 41 reviews
    4.9 (41)

    Kidde Plug in carbon monoxide

    $36.99
  9. Kidde Combination Smoke & Carbon Monoxide Hardwared, AA Backup
    4.6 out of 5 stars with 56 reviews
    4.6 (56)

    Kidde Combination Smoke & Carbon Monoxide Hardwared, AA Backup

    $64.99
  10. Top Rated
    Kidde Smoke & Carbon Monoxide ComboAlarm Detector AA Battery
    4.8 out of 5 stars with 51 reviews
    4.8 (51)

    Kidde Smoke & Carbon Monoxide ComboAlarm Detector AA Battery

    $64.99
  11. Gigastone Prime Series microSD Card 4-in-1 Kit
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Gigastone Prime Series microSD Card 4-in-1 Kit

    $39.99
  12. Top Rated
    Ring Smart Lighting Bridge
    4.8 out of 5 stars with 14 reviews
    4.8 (14)

    Ring Smart Lighting Bridge

    $49.99

Customers Also Bought

  1. Tarpex 20 ft. x 40 ft. Waterproof Heavy-Duty 10 Mil Polyethylene Tarp, Silver/Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Tarpex 20 ft. x 40 ft. Waterproof Heavy-Duty 10 Mil Polyethylene Tarp, Silver/Black

    $76.49
    Was $84.99Save $8.50
  2. Tarpex 8 ft. x 30 ft. 10 oz. Canvas Tarp, Green
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Tarpex 8 ft. x 30 ft. 10 oz. Canvas Tarp, Green

    $125.99
    Was $139.99Save $14.00
  3. Tarpex 10 x 10ft. Waterproof Heavy-Duty 10 Mil Polyethylene Tarp, Silver/Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Tarpex 10 x 10ft. Waterproof Heavy-Duty 10 Mil Polyethylene Tarp, Silver/Black

    $10.99
  4. Cinmoore WiFi Battery Camera
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Cinmoore WiFi Battery Camera

    $71.99
  5. TravlFi JourneyXTR Router
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    TravlFi JourneyXTR Router

    $299.99
  6. Core Tarps 10 ft. x 10 ft. Tarp, 5 mil, Blue
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Core Tarps 10 ft. x 10 ft. Tarp, 5 mil, Blue

    $17.09
    Was $18.99Save $1.90
  7. Core Tarps Ultra Heavy Duty Vinyl Tarp, Waterproof, UV Resistant 30 mil Clear, Blue 10 x 12
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Core Tarps Ultra Heavy Duty Vinyl Tarp, Waterproof, UV Resistant 30 mil Clear, Blue 10 x 12

    $143.99
    Was $159.99Save $16.00
  8. Core Tarps 10 ft. x 20 ft. Tarp, 16 mil, Green/Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Core Tarps 10 ft. x 20 ft. Tarp, 16 mil, Green/Black

    $64.99
  9. Alfred Chrome DB2 Smart Deadbolt Door Lock
    4.7 out of 5 stars with 23 reviews
    4.7 (23)

    Alfred Chrome DB2 Smart Deadbolt Door Lock

    $199.99
  10. Alfred Black DB2 Smart Deadbolt Door Lock
    4.7 out of 5 stars with 24 reviews
    4.7 (24)

    Alfred Black DB2 Smart Deadbolt Door Lock

    $199.99
  11. Tarpco Safety 10 ft. x 12 ft. Tarp, 7 mil, Brown/Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Tarpco Safety 10 ft. x 12 ft. Tarp, 7 mil, Brown/Black

    $23.39
    Was $25.99Save $2.60
  12. Tarpex 40 ft. x 60 ft. Waterproof Heavy-Duty 10 Mil Polyethylene Tarp, Silver/Black
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Tarpex 40 ft. x 60 ft. Waterproof Heavy-Duty 10 Mil Polyethylene Tarp, Silver/Black

Reviews

Review this Product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Be the first to review this product
Get the top deals, latest trends and more
Sign up for emails from Tractor Supply today.
First Name*
Last Name*
Email*

Customer Support

  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  

    (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

About Us

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

Work With Us

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

Neighbor's Club

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

Credit Center

  • TSC Credit Card

  • Klarna

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More
  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

  • TSC Credit Card

  • Klarna

Connect & Share with the Tractor Supply Community.

Shop on the go with the Tractor Supply App

Learn More
  • Privacy policy
  • Your Privacy Choices
  • Terms and Conditions
  • California Transparency Act
  • Legal Notices
  • Accessibility
  • Responsible Disclosure Statement
  • Surprise (Balance) Medical Billing Disclosure
  • Transparency in Coverage
  • Human Rights Policy
  • Vendor Code of Conduct
  • California Notice of Collection
  • Privacy Requests

© 2026, Tractor Supply Co. All Rights Reserved.