Gentex GN-503F Hard Wired Smoke/Carbon Monoxide Photoelectric Alarm with Backup

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  • Regular price $84.90

This is a combination photoelectric Gentex smoke alarm and electrochemical sensor carbon monoxide alarm engineered to virtually eliminate nuisance alarms and deliver reliable smoke and CO protection. It has one set of contacts for either smoke or CO annunciation.



  • 85dBA alarm horn at 10 feet
  • 120VAC with 9V battery backup
  • DUALINK® differentiating tones: T3 temporal smoke alarm, T4 temporal carbon monoxide alarm
  • One set of Form A/C relay contacts
  • Relay contacts operate on battery backup
  • Push button self test feature
  • Push button functional test feature
  • Non-latching (self restoring) alarm
  • Low battery or missing battery indicator
  • Meets state, federal, and ADA requirements
  • Quick-disconnect wiring harness
  • Connect up to a maximum of 12 Gentex GN-503 combination smoke/CO alarms
  • 9V battery backup
  • UL Listed (USA); CSFM listed