First Alert SC5 Smart Smoke & Carbon Monoxide Alarm, 2-pack $149.99 Battery or Hardwired Free Shipping Costco.com

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https://www.costco.com/p/-/first-...?langId=-1 $50 OFF $50 manufacturer's savings is valid 10/01/26 through 10/31/26. While supplies last. Limit 10 per member. Precision Detection Advanced...