Interconnect hardwire dual sensor smoke alarm with battery backup

First Alert ★ 3.9/5 · ItemOracle Score Mid-Range

$45 USD
Price subject to change
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First Alert SM300-AC, Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup, 1-Pack

Smoke detector with dual smoke sensors and battery backup for continuous protection. Interconnects with compatible alarms to provide early warning across units. Users note easy installation and dual sensing, with mixed feedback on false alarms

Highlights

  • dual sensing for smoldering and flaming fires
  • battery backup ensures operation during outages
  • interconnects with other alarms for early warning

Pros

  • dual smoke sensor technology
  • battery backup for power outages
  • interconnects with compatible alarms
  • latching indicator for initiating alarm
  • test/silence button for quick testing

Cons

  • mixed feedback on false alarms
  • battery life concerns
  • potential wiring compatibility issues

Best For

  • single-family homes safety
  • apartment or multi-unit building
  • kitchen smoke monitoring with nuisance reduction
  • basement or hallway corridor protection
  • homes with interconnect alarm networks
  • during power outages for continuous protection

Features

  • Precision Detection reduces cooking nuisance alarms while delivering early warning
  • Dual smoke sensors protect against smoldering and fast flaming fires
  • Interconnects with most First Alert and BRK alarms to sound together
  • Latching alarm indicator shows the initiating unit; battery backup maintains protection
  • Test/Silence button for testing and temporary silencing up to 8 hours

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