3120B Hardwire Dual Sensor Smoke Alarm with Battery Backup - First Alert
The First Alert® Hardwired Dual Sensor Smoke Alarm with Battery Backup is designed to provide peace of mind. The photoelectric and ionization sensors alert you to both smoldering and fast-flaming fires, offering comprehensive detection and early warning.
First Alert BRK 3120B Hardwired Photoelectric and Ionization …
This dual sensor, photoelectric and ionization alarm alerts you to both smoldering and fast-flaming fires in the event of a home fire emergency. Hardwire alarm includes battery backup for protection during power outages. Two latching features help indicate a low battery or …
First Alert BRK Hardwired (with Battery Back-up) Dual Sensor …
Hardwired with AA battery backup for constant monitoring, even during a power failure. Photoelectric and ionization sensor to quickly detect both fast burning, and smoldering fires, which alerts you with an 85-decibel alarm.
FIRST ALERT BRK 3120B-6 Hardwired Smoke Detector with …
FIRST ALERT BRK 3120B-6 Hardwired Smoke Detector with Photoelectric and Ionization with Battery Backup, 6-Pack , White. Visit the FIRST ALERT Store. 4.4 2,500 ratings. 50+ bought in past month. $17330. Size: 6-Pack. 1-Pack. 6-Pack. Style: Dual Sensing Smoke Alarm. See more. About this item.
Product: 3120B - First Alert
Smoke & Carbon Monoxide Alarms. Model: 3120B. Download product manual. Register your product. Buy now. Setup. Why Replace Smoke Alarms Every 10 Years? Learn why the NFPA recommends that smoke alarms be replaced every 10 years (at least). About alarm life expectancy / expiration.
First Alert 3120B 120VAC Hardwired Dual Sensor Smoke Alarm
This First Alert 120VAC Hardwired Photoelectric and Ionization Smoke Alarm with Battery Backup provides double protection for both flaming and smoldering fires using both ionization and photoelectric smoke sensors.
- Reviews: 29
FIRST ALERT BRK 3120B-3 Hardwired Smoke Detector with …
The First Alert BRK 3120B hardwire dual photoelectric and ionization sensor smoke alarm with battery backup is designed to provide peace of mind. It features photoelectric and ionization sensors that detect not just fast-flaming fires, but also smoldering ones.
- Reviews: 227
First Alert 3120B Smoke & Carbon Monoxide Detectors Review
Read CR's review of the First Alert 3120B smoke & carbon monoxide detectors to find out if it's worth it.
Dual Sensor Hardwired Smoke Alarm - Hardwired Fire Detector | 3120B …
The First Alert 3120B Hardwired Dual Sensor Smoke Alarm features photoelectric and ionization sensors. The photoelectric sensor detects smoldering fires from objects like cigarettes burning on furniture or in trash cans, while the ionization sensor detects fast-flaming fires like kitchen grease fires or combustibles.
First Alert BRK 3120B Hardwired Photoelectric and Ionization …
The First Alert BRK 3120B Hardwired Smoke Alarm includes a battery backup that continues to protect you in the event of a power failure. It's designed for residential use as well as for institutional locations such as hospitals, hotels, dorms, and multiple-family dwellings.