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FireAngel Optical Smoke Alarm 2-Pack — FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button, Replacement for FireAngel ST-622/ST-620

Pros

  • Twin pack covers two rooms in one purchase
  • Sealed 10-year lithium battery, no replacements needed
  • Test/silence button for easy false-alarm hushing

Cons

  • Standalone units, no wireless interlink between the two alarms

Specifications

Connectivity
Standalone
Warranty
5 years