Order Status
Blog
Best Buy Business
Français
Cancel
Stores
Cart
Menu
Shop
Get Inspired
Latest and Greatest Tech
Latest and Greatest Tech
Shop All
Brands
Brands
Shop by Category
Computers, Tablets, & Accessories
Computers, Tablets, & Accessories
Shop All
Cell Phones and Accessories
Cell Phones and Accessories
Shop All
Office Supplies & Ink
Office Supplies & Ink
Shop All
TV & Home Theatre
TV & Home Theatre
Shop All
Headphones, Speakers, & Audio
Headphones, Speakers, & Audio
Shop All
Cameras, Camcorders, & Drones
Cameras, Camcorders, & Drones
Shop All
Car Tech and GPS
Car Tech and GPS
Shop All
Appliances
Appliances
Shop All
Smart Home
Smart Home
Shop All
Home Living
Home Living
Shop All
Baby & Maternity
Baby & Maternity
Shop All
Video Games & VR
Video Games & VR
Shop All
Wearable Technology
Wearable Technology
Shop All
Health & Fitness
Health & Fitness
Shop All
Sports, Recreation, & Transportation
Sports, Recreation, & Transportation
Shop All
Movies & Music
Movies & Music
Shop All
Musical Instruments & Equipment
Musical Instruments & Equipment
Shop All
Toys, Games, & Education
Toys, Games, & Education
Shop All
Beauty
Beauty
Shop All
Personal Care
Personal Care
Shop All
Travel, Luggage, & Bags
Travel, Luggage, & Bags
Shop All
Watches, Jewelry, & Fashion
Watches, Jewelry, & Fashion
Shop All
Gift Cards
Gift Cards
Shop All
Holiday Savings
All Holiday Savings
Holiday Gift Guide
Deals
Top Deals
Outlet
Open Box Products
Refurbished Products
Clearance Products
All Outlet Deals
Services
Support and Benefits
Geek Squad Services
Best Buy Membership
Best Buy Protection
Best Buy Business
Upgrade and Recycle
Monthly Subscription
Trade-In Program
Electronics Recycling
Tech at Any Age
Best Buy Health
Geek Squad Academy
Order Status
Blog
Best Buy Business
Français
CO and Smoke Detectors
Shipping and Pickup
Get it Shipped
Pick Up at Nearby Stores
Current Offers
On Sale
(4)
Online Only
(9)
Product Condition
Brand New
(10)
Discount
50% Off or More
(1)
40% Off or More
(1)
30% Off or More
(2)
20% Off or More
(4)
All Discounted Items
(4)
Status
Whats New
(6)
Price
Min
-
Max
Apply Price Range
Less than $50
(2)
$50 - $74.99
(1)
$75 - $99.99
(1)
$100 - $199.99
(4)
$200 - $249.99
(1)
$250 - $299.99
(2)
$300 - $499.99
(2)
Brands
GOOGLE
(2)
RING
(1)
AIRTHINGS
(1)
ALULA
(1)
CAMCO MANUFACTURING
(1)
FIREBOY-XINTEX
(2)
FIRST ALERT
(1)
ISTAR
(1)
ONELINK
(1)
TECHCRAFT
(1)
Sensor or Detector Type
Smoke Detector
(6)
Carbon Monoxide
(12)
Radon Gas
(1)
Temperature Sensor
(2)
Other
(2)
Compatibility
Works With Google Assistant
(1)
Works With Amazon Alexa
(1)
Works With Apple HomeKit
(1)
IFTTT
(1)
Connectivity
Wi-Fi
(3)
Shop With
Best Buy Only
(4)
All Marketplace Sellers
(9)
Sellers
BestBuyCanada
(4)
Deal Targets
(3)
Digiviewca
(1)
ISTAR
(1)
Safrey Enterprises
(1)
Simple Boutique
(1)
Super Canadian Store
(1)
TechCity Canada
(1)
Customer Rating
5 Stars
(1)
4 Stars & Up
(6)
3 Stars & Up
(6)
Voice Assistant Built-in
Amazon Alexa
(1)
13 results
In Stock
Best Buy Only
Sort
Sort
Best Match
Price Low-High
Price High-Low
Highest Rated
Google Nest Protect Wi-Fi Smoke & Carbon Monoxide Alarm (Battery) (S3000BWEF)
(8022 Reviews)
$148.99
$148.99
Ring Alarm Smoke & Carbon Monoxide Listener
(107 Reviews)
$49.99
$49.99
Google Nest Protect Wi-Fi Smoke & Carbon Monoxide Alarm (Wired) (S3003LWEF)
(8023 Reviews)
$148.99
$148.99
Google Home Safety Bundle - Nest Protect Wi-Fi Smoke & Carbon Monoxide Alarm 2-pack & Insignia Headphone Adapter
(10586 Reviews)
$297.99
$297.99
Airthings Corentium Home Radon Detector 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, pCi/L
(36 Reviews)
$279.99
$279.99
SAVE $70
Marketplace seller
First Alert Onelink Wi-Fi Smoke & CO Alarm (Battery) - Brand New - White
(0 Reviews)
$129.99
$129.99
SAVE $70
Marketplace seller
ISTAR Wifi Smoke Detector Smart Fire Alarm Sensor Wireless Security System Smart Life Tuya APP Control For Home Kitchen/Store/Hotel/Factory
(0 Reviews)
$34.99
$34.99
SAVE $50
Marketplace seller
FIRST ALERT CO605 CARBON MONOXIDE PLUG - IN ALARM - BATTERY BACKUP
(6 Reviews)
$64.95
$64.95
Marketplace seller
Camco Manufacturing 59023 Propane Gauge Leak Detector
(0 Reviews)
$81.51
$81.51
Marketplace seller
ALULA CO ALARM SENSOR
(0 Reviews)
$109.99
$109.99
Marketplace seller
Xintex Gasoline Fume Detector & Alarm w-Plastic Sensor - Chrome Bezel Display
(0 Reviews)
$413.08
$413.08
Marketplace seller
Xintex Gasoline Fume Detector & Blower Control w-Plastic Sensor - Chrome Bezel Display
(0 Reviews)
$433.76
$433.76
Marketplace seller
TechCraft - Solid Fire Alarm Cable, 18AWG, 2 Conductors, Shielded, FPLR / CMR, 1000 Foot Length, Red
(0 Reviews)
$239.96
$239.96
SAVE $60
Marketplace seller
End of results