First Alert 9120BFF Smoke Detector, White, 1-Pack
4.7
(17k+ ratings)
Enhance your home safety with this 120-volt AC hardwired smoke alarm featuring an ionization sensor for detecting fast flaming fires. It includes a 9-volt battery backup to maintain functionality during power outages. The unit can be interconnected with up to 18 compatible devices, ensuring all alarms sound if one is triggered. Installation is simplified with a gasketless mount and a new bracket design for secure placement. Features include a test/silence button, tamper-resistant locking pins, and a dust cover. It comes with a 10-year limited warranty and meets UL 217 standards.
What customers like:
- Perfect replacement for older models
- Easy to install
- Comes with a battery
- Nice and loud alarm
- Good price
- Reduced false alarms
- Battery backup for added security during power outages
- Straightforward instructions
What customers dislike:
- Short lifespan of previous models (only one year for some)
- No comment on battery life due to short usage time
