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Amazon.com: Kidde KN-COSM-IBA Hardwire Combination Smoke Carbon Monoxide Detector Battery Backup Voice Warning Interconnectable | 6-Pack
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Kidde Hardwire Carbon Monoxide Alarm with Digital Display and Peak Level Memory - Carbon Monoxide Detectors - Amazon.com
X-Sense 10-Year Battery Smoke and Carbon Monoxide Detector with LCD Display, Dual Sensor Smoke and CO Alarm Complies with UL 217 & UL 2034 Standards, Auto-Check, SC08 - - Amazon.com
FIRST ALERT Plug-In Carbon Monoxide Detector with Battery Backup, 3-Pack, CO605 - - Amazon.com
Amazon.com: Kidde Smoke & Carbon Monoxide Detector, Battery Powered, Combination Smoke & CO Alarm, Voice Alert : Everything Else
2 Pack 10 Year Battery Operated Smoke and Carbon Monoxide Detector, Portable Fire Co Alarm for Home and Kitchen - - Amazon.com
