4th of July SaleEnds Sunday. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
Main Content

First Alert - Standard Battery-Operated Smoke and CO Alarm 2 Pack Models SMI100 and CO400 - White

Model: 1046718
SKU: 12164539

Reviews coming soon

Sold & shipped by
Diddly Deals
$47.99
or
Availability
FREE shipping to
Sold & shipped by
Diddly Deals
4.25(211)

About This Item

Install reliable fire and carbon monoxide (CO) protection with this First Alert® Value Safety 2 Pack. It includes the SMI100 battery-operated smoke alarm and the CO400 battery-operated carbon monoxide alarm. The SMI100 Smoke Alarm features the First Alert® Precision Detection advanced-sensing technology that meets the latest industry standards to reduce cooking nuisance alarms, detect smoke from synthetic materials, and provide early warning in the event of a home fire emergency. The CO400 carbon monoxide alarm utilizes an electrochemical carbon monoxide sensor - the most accurate sensor available - to detect carbon monoxide. Both are battery operated, easy to install, have convenient test/silence buttons, front-access battery doors for easy battery replacement, and will work in the event of a power outage.
  • Key Specs
    • Detector Type: Carbon monoxide, Smoke
    • Sensor Type: Electrochemical, Ionization
    • Power Source: Battery-powered
    • Number of Devices Included: 2
  • General
    • Brand: First Alert
    • Model Number: 1046718
    • Product Name: Standard Battery-Operated Smoke and CO Alarm 2 Pack Models SMI100 and CO400
    • Color: White
  • Detection
    • Alarm Type: Audible
    • Detector Type: Carbon monoxide, Smoke
    • Sensor Type: Electrochemical, Ionization
  • Compatibility
    • App Compatible: false (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
  • Power
    • Power Source: Battery-powered
  • Dimensions
    • Product Height: 3 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 8.8 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 10.4 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 1.4 pounds (The out of box weight of the item.)
  • Included
    • Number of Devices Included: 2
  • Warranty
    • Warranty - Parts: 10 year limited
  • Other
    • UPC: 029054021724

Install reliable fire and carbon monoxide (CO) protection with this First Alert® Value Safety 2 Pack. It includes the SMI100 battery-operated smoke alarm and the CO400 battery-operated carbon monoxide alarm. The SMI100 Smoke Alarm features the First Alert® Precision Detection advanced-sensing technology that meets the latest industry standards to reduce cooking nuisance alarms, detect smoke from synthetic materials, and provide early warning in the event of a home fire emergency. The CO400 carbon monoxide alarm utilizes an electrochemical carbon monoxide sensor - the most accurate sensor available - to detect carbon monoxide. Both are battery operated, easy to install, have convenient test/silence buttons, front-access battery doors for easy battery replacement, and will work in the event of a power outage.

  • Dual Protection: Includes one smoke alarm and one carbon monoxide alarm to help keep your home safe from fire and CO hazards
  • Advanced Smoke Detection: Features Precision Detection technology that reduces nuisance alarms and detects fast-burning synthetic smoke for early warning
  • Accurate CO Sensing: Uses an electrochemical sensor for reliable carbon monoxide detection and safety
  • Battery Operated: Both alarms run on 9-volt batteries, ensuring operation during power outages and easy replacement through front-access doors
  • Loud Alarm Sound: Alarms emit 85 dB sound at 10 ft to alert you effectively in emergencies
Product Manuals
Sponsored

Reviews

This product doesn't have any reviews yet.

Compare similar products

First Alert - Standard Battery-Operated Smoke and CO Alarm 2 Pack Models SMI100 and CO400 - White
First Alert - Standard Battery-Operated Smoke and CO Alarm 2 Pack Models SMI100 and CO400 - White

Install reliable fire and carbon monoxide (CO) protection with this First Alert® Value Safety 2 Pack. It includes the SMI100 battery-operated smoke alarm and the CO400 battery-operated carbon monoxide alarm. The SMI100 Smoke Alarm features the First Alert® Precision Detection advanced-sensing technology that meets the latest industry standards to reduce cooking nuisance alarms, detect smoke from synthetic materials, and provide early warning in the event of a home fire emergency. The CO400 carbon monoxide alarm utilizes an electrochemical carbon monoxide sensor - the most accurate sensor available - to detect carbon monoxide. Both are battery operated, easy to install, have convenient test/silence buttons, front-access battery doors for easy battery replacement, and will work in the event of a power outage.

First Alert - Plug-In Explosive Gas and Carbon Monoxide Alarm - White & Gray
4.6(47)

Protect yourself from explosive gas and carbon monoxide with this First Alert alarm. It lets you know if propane, natural gas, methane or carbon monoxide are present in your home. This First Alert alarm plugs into any standard outlet, and it has a backup battery for uninterrupted protection during power failures.

First Alert - Carbon Monoxide Alarm
5.0(2)

Stay alert to dangerous gases with this First Alert carbon monoxide alarm. Sensors in this alarm detect CO in the air, setting off a loud 85dB siren to wake up your home's occupants and alert them to danger. Silence false alarms, and test this First Alert carbon monoxide alarm with just a touch of a button.

First Alert - SMCO200V Battery-Operated 2-in-1 Smoke and CO Alarm, Voice and Location Alerts - White

The First Alert® SMCO200V Battery-Operated 2-in-1 Smoke Alarm and Carbon Monoxide Alarm provides reliable protection against both threats. Its alarm features voice and location alerts to help you escape safely. Our Precision Detection advanced-sensing technology complies with the latest industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency. The voice and location alert feature tells you what the danger is and its location to help you escape safely. This combo smoke and CO detector also has a slim profile, measuring only half the depth of a standard alarm. The sleek, modern design seamlessly blends into most décor and is easy to install throughout your home.

Specs

No content
Sponsored

Similar products from outside of Best Buy

sponsored
Ask BlueAI

Finance Options

My Best Buy® Credit Card
Buy Now, Pay Later
4 payments starting at $12.00