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Kidde Smart Smoke and Carbon Monoxide Detector with Indoor Air Quality Monitor, Hardwired, 10-Year Lithium Backup Battery 21030843 - The Home Depot
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Siterlink 2.4G Smart Smoke Detector Carbon Monoxide Detector Combo with Digital Display, 2 in 1 WiFi Fire and CO Alarm Detector, Replaceable Battery, Real-Time Notification, UL217 UL2034, 1 Pack - Amazon.com
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TREATLIFE Smart WiFi Smoke & Carbon Monoxide Detector, Battery Backup, Smoke & CO Alarm Combo, App Notification, Wireless Interconnect, Voice & Replacement Alert, Photoelectric Sensor Fire Alarm - Amazon.com
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