First Alert BRK Smoke Alarm, Interconnect Hardwire Detector with 10-Year Battery Backup, SMI105-AC, 3-Pack

★★★★★ 4.8 147 reviews

$82.99
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$82.99
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Free shipping Free 30-day returns

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Product details

Management number 210135046 Release Date 2026/04/02 List Price $33.20 Model Number 210135046
Category

The First Alert SMI105-AC Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup uses First Alert's Precision Detection advanced sensing technology and meets new industry standards. Interconnect multiple alarms together to help provide an early warning throughout your whole home and have peace of mind knowing the 10-year battery backup provides continuous protection in the event of a power outage.

  • First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
  • 10-Year battery backup provides continuous protection during power outages
  • Through early warning interconnect, when one alarm sounds, all compatible* alarms will sound
  • Alarm indicator visually identifies the unit that initiated the alarm
  • End-of-life warning lets you know when it’s time to replace the alarm

UPC 029054022622
Alarm Audible
Brand First Alert
Color White
Unit Count 3.0 Count
Item Weight 11.2 ounces
Sensor Type Ionization
Manufacturer Resideo
Model Number SMI105-AC
Power Source Corded Electric
BuiltIn Media Easy Adapter Plug
Product Style Precision Detection
Item Type Name Smoke Alarm
Operating Humidity 10-95% RH
Item Dimensions D x W x H 5.5"D x 2"W x 5.5"H

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4.8 out of 5
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147 ratings | 60 reviews
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