Home Slickdeals Amazon – First Alert Z-Wave 2-in-1 Smoke and Carbon Monoxide Alarm $35.97 Slickdeals Amazon – First Alert Z-Wave 2-in-1 Smoke and Carbon Monoxide Alarm $35.97 By ARCOM - 20 February 2019 140 0 SHARE Facebook Twitter Go to the deal page: Amazon – First Alert Z-Wave 2-in-1 Smoke and Carbon Monoxide Alarm $35.97