Home Smart Home First Alert 2-in-1 Z-Wave Smoke & Carbon Monoxide Detector $26.54 Smart Home First Alert 2-in-1 Z-Wave Smoke & Carbon Monoxide Detector $26.54 By ARCOM - 4 December 2017 180 0 SHARE Facebook Twitter Go to the deal page: First Alert 2-in-1 Z-Wave Smoke & Carbon Monoxide Detector $26.54