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First Alert 120V AC Carbon Monoxide Alarm with Battery Backup




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Hardwired carbon monoxide alarm with battery back-up meets codes where CO alarms are required for new construction. The BRK SC9120 hardwire combination smoke and CO alarm with battery backup includes these features: Quick plug-in power connector for easy installation, 120-volt AC inter-connectable (with maximum 18 compatible devices - 12 other compatible smoke alarms + 6 compatible devices like bells, horns, repeaters and door closers. If one unit triggers an alarm, all smoke alarms in the series will sound. Single test/silence button which both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. Automatically performs internal test of functionality. Latching alarm indicator which automatically identifies which unit initiated the alarm. Battery drawer lock and mounting bracket lock for tamper resistance. AC power indicator and alarm indicator light. Low battery warning "chirp" and missing battery tab. 9-volt battery backup for peace


  • 120V AC with 9V battery backup
  • Intelligent sensing technology
  • Side load battery drawer
  • Latching alarm indicator
  • Test/silence button
  • 7-year limited warranty
  • Sku Number


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