First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 1-Pack

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Breadcrumb Abstract Shape
First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 1-Pack

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 1-Pack

$21.26

Price: $21.26
(as of Jun 01,2026 22:05:52 UTC – Details)

Features:

  • First Alert’s Precision Detection advanced sensing technology

  • Complies with new industry standards to reduce cooking nuisance alarms

  • Early warning in the event of a home fire emergency

  • Interconnect compatible alarms for whole home alarm system

  • Battery backup for continuous protection during power outages

  • Alarm indicator visually identifies the unit that initiated the alarm

  • Quick Connect Plug for easy installation with no rewiring needed

Pros:

  • Easy to install and replace existing alarms

  • Reduces cooking nuisance alarms

  • Interconnect feature ensures all alarms sound when one is triggered

  • Battery backup provides peace of mind during power outages

  • Visual alarm indicator helps identify the source of the alarm

  • Quick Connect Plug makes installation a breeze

Cons:

  • May require additional compatible alarms for whole home coverage

  • Hardwiring installation may be challenging for some users

  • Regular battery replacement required for optimal performance

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