Interconnect hardwire dual sensor smoke alarm with battery backup

First Alert ★ 3.3/5 · ItemOracle Score Premium

$214 USD
Price subject to change
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First Alert Interconnect Hardwire Dual Sensor Smoke Alarm with Battery Backup, SM300-AC, 6-Pack

Dual sensor smoke alarm with interconnect and battery backup for continuous protection. Early warning via dual sensing and compatibility with most alarms. Users note easy installation and good value, with mixed feedback on false alarms

Highlights

  • Interconnects with other alarms
  • Dual sensor technology
  • Battery backup

Pros

  • Dual smoke sensor technology for smoldering and fast flaming fires
  • Interconnects with most compatible alarms
  • Battery backup provides protection during outages
  • Visual latching alarm indicator
  • Easy installation reported by customers

Cons

  • Mixed feedback on false alarms
  • Some reports of missing or depleted backup batteries
  • Beep frequency and wiring harness compatibility issues mentioned

Best For

  • home smoke detection with interconnect system
  • backup protection during power outages
  • new-ownership home safety updates
  • replacing older dual-sensor alarms
  • installing in multi-room residences
  • for kitchens and living areas requiring reduced nuisance alarms

Features

  • Precision Detection reduces nuisance alarms while providing early warning
  • Dual smoke sensors cover smoldering and fast flaming fires for protection
  • Interconnects with most First Alert and BRK alarms to sound together
  • Latching Alarm Indicator identifies the initiating unit or low battery
  • Battery backup maintains operation during power outages

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