First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup – 3 Pack

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First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup – 3 Pack

First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup – 3 Pack

Original price was: $174.99.Current price is: $141.99.

Price: $174.99 - $141.99
(as of Mar 22,2026 07:49:51 UTC – Details)

Features:

  • Interconnect multiple alarms for whole-home protection

  • Precision Detection technology reduces cooking nuisance alarms

  • Quick Connect Plug for easy installation

  • Battery backup for continuous protection during power outages

  • Test/silence button for efficient testing

Pros:

  • Meets new industry standards

  • Provides early warning in case of a home fire emergency

  • Interconnected alarms all sound when one is triggered

  • Easy to install without rewiring

  • Ensures alarm is working properly with test/silence button

Cons:

  • May require additional alarms for larger homes

  • Battery backup will need to be replaced periodically

  • Initial cost may be higher for a 3-pack

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