Home Slickdeals First Alert Smoke & CO Alarms: Wireless Photoelectric Smoke/Carbon Monoxide Alarm w/... Slickdeals First Alert Smoke & CO Alarms: Wireless Photoelectric Smoke/Carbon Monoxide Alarm w/ Voice $31.49, Hardwire Carbon Monoxide Alarm w/ Battery Backup $19.08 & More via Amazon By ARCOM - 30 July 2019 132 0 SHARE Facebook Twitter Go to the deal page: First Alert Smoke & CO Alarms: Wireless Photoelectric Smoke/Carbon Monoxide Alarm w/ Voice $31.49, Hardwire Carbon Monoxide Alarm w/ Battery Backup $19.08 & More via Amazon