Kidde 21007624 AC Photoelectric Smoke and Carbon Monoxide Detector Alarm | Hardwired with Battery Backup | Model # KN-COPE-IC - Photoelectric Smoke Detector Carbon Monoxide Hardwired - Amazon.com
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Firex 7000 (FADCQ) AC/DC Carbon Monoxide and Smoke Alarm (Upgraded to I12010SCO + KA-F2)
First Alert Brk Hardwired Combination Smoke and Carbon Monoxide Detector with Voice Alert in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com