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10-Year Interconnected Hardwired Smoke Alarm With Ionization Sensor
- Mfg.#
- 1046850
- Sku#
- 3509528
- 10-Year Factory Locked Battery Backup. 10-years of continuous protection with no battery change required and protection during power outages
- Advanced Smoke Protection, advanced sensing technology for early warning and less cooking nuisance alarms
- Latching alarm indicator, visually identifies unit that initiated alarm or low battery
- Interconnects with most First Alert and BRK alarms. When one alarm sounds, all compatible alams sound (up to 12 smoke alarms and 6 other alarms)
- Test/Silence Button, temporarily silence or test the alarm with one-touch, easy access button
* Estimated stock levels as of Wed, Apr 22, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.
Description
The First Alert SMI105-AC Interconnect Hardwire Smoke Alarm with 10-Year Battery Backup uses First Alert's Precision Detection advanced sensing technology and meets the latest industry standards. Interconnect multiple alarms together to help provide an early warning throughout your whole home and have peace of mind knowing the 10-year battery backup provides continuous protection in the event of a power outage.
Specifications
General
| Battery | Lithium Ion |
|---|---|
| Sensor Type | Ionization |
| Sound Level | 85dB at 10 feet |
| Type | Smoke Alarm |
Dimensions
| Height | 2.25 |
|---|---|
| Width | 5.69 in |
Manufacturing Details
The following information is subject to change without notice
| Shop USA | No |
|---|
