$(csi.user.businessName)

Main Content

Loading...

Early Black Friday Deals & DoorbustersEnds Nov. 15.Shop now

Skip to content Go to Product Search

Visit our Support Center
Check your Order Status
Shipping, Delivery & Store Pickup
Returns & Exchanges
Price Match Guarantee

Order & Purchases

Check Order Status
Shipping, Delivery & Pickup
Returns & Exchanges
Price Match Guarantee
Product Recalls
Trade-In Program
Gift Cards

Payment Options

My Best Buy® Credit Card
Pay Your Bill at Citibank
Lease to Own
Buy Now, Pay Later
Best Buy Business Financing

Support & Services

Visit our Support Center
Schedule a Service
Manage an Appointment
Protection & Support Plans
Haul Away & Recycling
Contact Us

Rewards & Membership

My Best Buy Memberships
View Points & Certificates
Member Offers

Partnerships

Sell on Best Buy Marketplace
Advertise with Us
Affiliates: Creators & Publishers
Best Buy Health
Best Buy Education
Best Buy Business
Partner+

About Best Buy

Corporate Information
Careers
Corporate Responsibility
Sustainability

Sign in or Create Account

Get the latest deals and more.

Email Address

Best Buy appLearn more ›

Best Buy Canada

Accessibility Terms & Conditions Privacy Interest-Based Ads State Privacy Rights Health Data Privacy Do Not Sell/Share My Personal Information Limit Use of My Sensitive Personal Information Targeted Advertising Opt Out CA Supply Chain Transparency Act

In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.

Black Friday Deals

Deal of the Day

My Best Buy Memberships

Best Buy Business

Best Buy Gamers

First Alert Onelink Safe & Sound Smart Smoke + CO Alarm and Speaker with Amazon Alexa search results

Filters

Skip To Results

Get it fast

Pickup · Ready todaySelect Store

Shipping · Get it today55423

Sold & shipped by

Best Buy

Category

Home Alarms & Sensors

Water & Temperature Sensors

Smoke & Carbon Monoxide Detectors

Price

to

Less than $25

$25 - $49.99

$50 - $74.99

$75 - $99.99

$100 - $149.99

$150 - $199.99

$250 - $499.99

Brand

First Alert

Google

SimpliSafe

ecobee

X-SENSE

Honeywell Home

Kidde

Features

App Compatible

Bluetooth

Battery Backup

Plug-In

Current Deals

On Sale

Color

White

Gray

Multi

Indoor/Outdoor Use

Indoor

Indoor/Outdoor

Outdoor

Power Source

Battery-powered

Hard wired

Plug-in

Customer Rating

Top-Rated

5

4 & Up

Works With

Amazon Alexa

Google Home

Hue

Nest

Wink

First Alert Onelink Safe & Sound Smart Smoke + CO Alarm and Speaker with Amazon Alexa (50)

Sort by:

Sponsored

Sponsored

Sponsored

Sponsored

The text on the image reads: "ALARM TEST TO PUSH SMOKE & ALARM AIR FRESH TO MOVE PUSH TO ALARM SILENCE POWER." This text is grouped and corrected as follows:

"ALARM TEST TO PUSH SMOKE & ALARM AIR FRESH TO MOVE PUSH TO ALARM SILENCE POWER."

Sponsored

First Alert - Smoke and Carbon Monoxide Detector Hardwired - White

Rating 4.1 out of 5 stars with 171 reviews

4.1(171 reviews)

Compare

SMOKE & CO ALARM
MOVE TO FRESH AIR

Installed on:

POWER

TEST SENSE

LOW BATTERY

First Alert - SMICO110 Sealed 10-Year-Battery 2-in-1 Smoke and CO Alarm - White

Rating 5 out of 5 stars with 1 reviewfalse

Compare

SMOKE & CO ALARM
MOVE TO FRESH AIR
POWER
Installed ON:

First Alert - SMICO100-AC Interconnect Hardwire 2-in-1 Smoke and CO Alarm, Battery Backup, Ionization - White

Rating 5 out of 5 stars with 1 reviewfalse

Compare

The text on the image reads: "ALARM TEST TO PUSH SMOKE & ALARM AIR FRESH TO MOVE PUSH TO ALARM SILENCE POWER."

Sponsored

First Alert - Smoke and Carbon Monoxide Detector Battery Powered - White

Rating 4.1 out of 5 stars with 157 reviews

4.1(157 reviews)

Compare

19-36 of 50 items

Sponsored

$129.99$12999

Pick up today

Get it tomorrow • FREE

$48.00$4800

Save $5.48

The comparable value is Comp. Value: $53.48

Get it by Fri, Nov 20 • FREE

$62.99$6299

Get it by Fri, Nov 20 • FREE

$122.99$12299

Save $7

The comparable value is Comp. Value: $129.99

Pick up today

Get it tomorrow • FREE

More options from $122.99

More options from $129.99

More options from $48.00