The First Alert SM100V-AC Hardwired Smoke Alarm with Battery Backup and Voice Alerts delivers reliable, code-compliant fire protection with advanced Precision Detection technology for fewer nuisance alarms and faster response to real threats. Voice and location alerts clearly identify danger, while interconnect capability ensures all alarms sound for whole-home safety. A backup battery keeps protection active during power outages, and convenient features like test/silence, low-battery warnings, and a latching alarm indicator make maintenance simple and effective.

• Sensor Type: Photoelectric
• Power Source: Hardwired
• Hardwired Interconnectivity: Yes
• Warranty: 10 Year Limited