This First Alert hardwired smoke alarm provides continuous fire detection and protection for your home using ionization sensor technology. It connects directly to your home’s 120-volt electrical system, eliminating reliance on batteries as the primary power source. The integrated 9-volt battery backup ensures the alarm continues to operate and alert you to smoke and fire hazards even during a power outage, giving you uninterrupted protection for up to 10 years.
Designed to meet all applicable fire safety standards, this smoke detector uses First Alert’s Precision Detection advanced sensing technology to identify fires quickly and reliably. The alarm produces an 85-decibel audible alert with visual indicators to notify occupants of a fire threat. You can interconnect multiple units throughout your home to create a coordinated whole-home fire detection system, so an alarm triggered in one room alerts occupants everywhere.
Features and Benefits
- Direct 120-Volt Wiring: Hardwired connection to your home’s electrical system provides primary power without external dependencies.
- 10-Year Battery Backup: 9V battery ensures continuous protection during power outages, maintaining alarm functionality for extended periods.
- Ionization Sensor: Uses Precision Detection advanced sensing technology for reliable fire detection.
- Interconnectable Design: Connect multiple alarms together for coordinated, whole-home fire detection and early warning coverage.
- Dedicated Test Button: Easily verify alarm operation with the convenient button on the unit.
- Audible and Visual Alerts: 85 dB alarm output with visual indicators for clear notification.
- 10-Year Warranty: Manufacturer warranty ensures reliable performance.
Specifications
- Brand: First Alert
- Model: 1046848 (SMI105-AC)
- Power Source: 120V hardwired with 9V battery backup
- Sensor Type: Ionization
- Alarm Output: 85 dB audible and visual
- Interconnectable: Yes
- Color: White
- Warranty: 10 years
