30-day postage paid returns
        Free shipping special for you
          First Alert BRK 9120B/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, 3-Pack
          First Alert BRK 9120B/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, 3-Pack
          • First Alert BRK 9120B/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, 3-Pack
          • First Alert BRK 9120B/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, 3-Pack
          1 / 2

          First Alert BRK 9120B/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, 3-Pack

          $20.44 USD
          Shipping fees will be calculated at checkout.

          • Free worldwide shipping

          • Free returns

          • Carbon neutral

          • Secure payments

          • 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
          Power SourceBattery Powered, Corded Electric
          Sensor TypeIonization
          Product Style3 Units (9120B)
          Color3 Units (9120B)
          Item Weight16 ounces
          Model Number9120B
          Unit Count3 Count
          Number of Items1
          ManufacturerFirst Alert
          UPC029054246707
          Mfr Part NumberSMI100-AC
          Style3 Units (9120B)
          Power Source TypeBattery Powered, Corded Electric
          SensorIonization
          Number Of Items1
          Upc029054246707
          Example title

          You may also like

          Recently viewed

          Service

          Fast and free delivery
          Lifetime customer support
          30 day refund guarantee

          Return policy | Privacy Policy | Shipping Policy | Terms of Service |
          © 2026 Twipik. All Rights Reserved.

          Cart

          loading