New
Arrivals/Restock
First Alert BRK 9120B/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, 3-Pack
4.9 (92 items)
Limited Time SaleUntil the end
13
22
33
$30.65 cheaper than the new price!!
Free shipping for purchases over $99 ( Details )
Free cash-on-delivery fees for purchases over $99
Free cash-on-delivery fees for purchases over $99
See all stores
Please note that the sales price and tax displayed may differ between online and in-store. Also, the product may be out of stock in-store.
New $51.09
Product details
| Management number | 218609644 | Release Date | 2026/05/03 | List Price | $20.44 | Model Number | 218609644 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
The product is a hardwired alarm, also confirm if the wiring polarity is correct and that all wire nut connections are secure. A loose neutral (white wire) connection within the home junction box could prompt a device malfunction. Promote greater household safety with the First Alert 9120B Hardwired Smoke Alarm with Battery Backup. This 120-volt AC smoke detector uses an ionization smoke sensor to reliably detect smoke from hot, fast-flaming fires and alerts you with a loud 85-decibel alarm.
- Imported
- Tamper resistant locking pins, single button silence test and loud 85dB alarm
- 120-Volt AC power with 9-Volt battery backup (included) to keep alarm functioning during power outage
| UPC | 029054246707 |
|---|---|
| Brand | First Alert |
| Color | 3 Units (9120B) |
| Unit Count | 3.0 Count |
| Item Weight | 16 ounces |
| Sensor Type | Ionization |
| Manufacturer | First Alert |
| Model Number | 9120B |
| Power Source | Battery Powered, Corded Electric |
| Product Style | 3 Units (9120B) |
| Mfr Part Number | SMI100-AC |
| Number of Items | 1 |
Crib Sheets
Smoke Detectors & Fire Alarms
Correction of product information
If you notice any omissions or errors in the product information on this page, please use the correction request form below.
Correction Request Form