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First Alert SC9120B | No.1 Smoke & CO Sensor
SponsoredNo.1 Smoke & CO Sensor in The World. BRK SC9120B - Your House is Safe! Smoke & Carbon Monoxide Sensor. First Alert SC9120B US No.1 Smoke Alarm10-Years Limited Warranty · Free Shipping · Same Day Shipping
5/5 (17K reviews)