FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement

FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement
FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement
FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement
FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement
FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement
FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement
FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement

Key features

  • Convenient adapter plugs makes it easy to replace existing hardwired alarms without needing to rewire
  • Keep your family safe with this hardwired First Alert smoke and carbon monoxide alarm with a 10-year battery backup, which means constant monitoring for the life of the alarm, even if there's a power failure
  • Combination smoke alarm and carbon monoxide detector features electrochemical carbon monoxide sensing technology, as well as intelligent smoke sensing technology to reduce nuisance alarms
  • Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85-decibel siren provides a clear, loud warning upon detection
  • Simple to use, with a single test/silence button; includes 10-year lithium battery with a locked drawer to prevent tampering
  • 10-year limited warranty; equipped with end-of-life signal, so you know when it's time to replace the unit for your safety
SizeNo Size
Colorwhite
WarrantyWarranty

FIRST ALERT SC9120B Corded Electric Combination Alarm with Adapter Plugs for Easy Replacement

List Price: $121.06$108.95DEALYou Save: $12.11 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 22, 2026In Stock (4)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection

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