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First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack

First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack

‎First Alert

18.99
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First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack
First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack 18.99
Visit and buy
  • 100+ Sold in the past week
  • 💥 300+ people added this to wishlists
  • ⏳ Only a few left — don’t miss out
  • ⭐️ Trusted by shoppers
First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack
First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack
18.99

Introducing the First Alert 9120BFF/ SMI100-AC Smoke Detector, a reliable and essential safety device for every home. This hardwired smoke alarm comes with a battery backup, ensuring uninterrupted protection even during power outages. The alarm is designed to detect smoke and alert you instantly, giving you and your loved ones precious time to escape in case of a fire emergency.

Manufactured by First Alert, a trusted name in home safety, this smoke detector is designed for ease of installation and maintenance....

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Specification
Brand ‎First Alert
Style ‎9120BFF
Power Source ‎Battery Powered
Color ‎White
Product Dimensions ‎5.6"D x 5.6"W x 2.2"H
Item Weight ‎0.8 ounces
Alarm ‎Audible
Sensor Type ‎Ionization
Global Trade Identification Number ‎00029054513014, 00029054015327
Manufacturer ‎First Alert
UPC ‎696505167234 029054015327 680147086961
Part Number ‎9120BFF
Country of Origin ‎Mexico
Item model number ‎9120B
Batteries ‎1 9V batteries required. (included)
Is Discontinued By Manufacturer ‎No
Size ‎1-Pack
Pattern ‎Filter
Voltage ‎120 Volts
Item Package Quantity ‎1
Number Of Pieces ‎1
Type of Bulb ‎LED
Cutting Diameter ‎5.6 Inches
Included Components ‎smoke detector, batteries, mount
Batteries Included? ‎Yes
Batteries Required? ‎Yes
Battery Cell Type ‎Alkaline
Warranty Description ‎10 Year Limited
Assembled Diameter ‎5.6 Inches
FAQ

Does this smoke detector include a battery?

Yes, it comes with a 9V battery that is protected by a plastic tab to prevent power drainage until installation.

Is the installation process complicated?

No, the First Alert 9120BFF is easy to install, compatible with existing First Alert mounting brackets and power connectors.

What’s the difference between model 9120B and 9120BFF?

The 9120BFF is typically packaged for contractors, including items like a dust cover for use during construction, but it is functionally identical to the 9120B model.

How often should smoke detectors be replaced?

It is recommended to replace smoke detectors every 10 years to ensure optimal performance.

Can this smoke detector be used during power outages?

Yes, it has a battery backup to ensure it operates even during power outages.

Reviews
First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack
First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack 18.99
Visit and buy
  • 100+ Sold in the past week
  • 💥 300+ people added this to wishlists
  • ⏳ Only a few left — don’t miss out
  • ⭐️ Trusted by shoppers