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          FIRST ALERT SC-9120B Smoke and Carbon Monoxide Alarm 2 Pack

          $43.71 USD

          • Free worldwide shipping

          • Free returns

          • Carbon neutral

          • Secure payments

          About this item:

          • Hardwired CO smoke alarm features battery backup for constant monitoring
          • Can connect to other compatible BRK or First Alert CO smoke detectors
          • Lights indicate if the alarm is for smoke or for carbon monoxide
          • Single test silence button for simple operation
          • Side-load battery compartment for convenience
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