Home Slickdeals Kidde Plug-In Carbon Monoxide Detector w/ Battery Backup $11.85 Slickdeals Kidde Plug-In Carbon Monoxide Detector w/ Battery Backup $11.85 By ARCOM - 30 November 2021 57 0 SHARE Facebook Twitter Go to the deal page: Kidde Plug-In Carbon Monoxide Detector w/ Battery Backup $11.85