Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display - Carbon Monoxide Detectors - Amazon.com
Kidde AC Plug-In Carbon Monoxide Detector at Lowes.com
Nighthawk™ Smoke/Carbon Monoxide Alarm | Seton
Kidde - 5-3/4 Inch Diameter, Smoke and Carbon Monoxide Alarm - 67317651 - MSC Industrial Supply
Kidde Nighthawk Carbon Monoxide Detector & Propane, Natural & Explosive Gas Detector, AC-Plug-in with Battery Backup, Digital Display, White & Smoke Detector, Battery Powered with Test Button - Amazon.com