Designed to help promote household safety, the FIRST ALERT 9120B hardwired smoke alarm with battery backup can provide a vital early warning of fire. This hardwired smoke detector uses an ionization smoke sensor to reliably detect smoke from hot, fast-flaming fires.
FIRST ALERT 9120B Smoke Alarm, Ionization Sensor
- 120 V hardwired smoke alarm wires directly into your home’s electrical system
- Ionization smoke sensor is optimal for detecting fast flaming fires
- Gasket-less mount system for hassle-free installation
- Easy-to-access battery drawer
- Can integrate with up to 12 other first alert or BRK hardwired smoke detectors
- Battery backup for detection during a power outage
- Tamper-resistant locking pins
- Interconnectable up to 18 units such as 12 smoke and 6 CO/heat/relay
- Emits T3 pattern
Regular Price: $17.99
$14.39
Select options to see availability at your location
{{formatStockMessage(selectedStoreQty, userStoreStock.price).message}}
This item cannot be sold in this state.
+ Check nearest locations with stock available
Stores selection based on detection of your zip code as {{wg.zipcode}}
Select options to see availability at your location
We are currently unable to ship this item to California.
Shipping will be calculated at checkout