First Alert BRK Hardwired Smoke and Carbon Monoxide Alarm - SC9120LBL
Combination Smoke & Gas Alarms by USI - Smoke, CO & Gas Detection
First Alert Slim Design Battery-Operated Combination Smoke & CO Alarm with Voice and Location, PRC700V - Walmart.com
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First Alert SCO7CN Combination Smoke and Carbon Monoxide Detector with Voice and Location, Battery Operated , White - Combination Smoke Carbon Monoxide Detectors - Amazon.com
First Alert 10-Year Battery-Operated Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
Kidde 10-Year Worry-Free Sealed Battery Combination Smoke and Carbon Monoxide Detector with Voice Alarm (3-Pack) 21030260 - The Home Depot
Combination Smoke and Carbon Monoxide Alarm|SC01-PD02