Home Slickdeals First Alert 2-in-1 Z-Wave Smoke Detector & Carbon Monoxide Alarm $26.54 Amazon... Slickdeals First Alert 2-in-1 Z-Wave Smoke Detector & Carbon Monoxide Alarm $26.54 Amazon (in stock 12/15) By ARCOM - 11 December 2017 228 0 SHARE Facebook Twitter Go to the deal page: First Alert 2-in-1 Z-Wave Smoke Detector & Carbon Monoxide Alarm $26.54 Amazon (in stock 12/15)