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Google Nest S3000BWEF Protect Wireless Smoke and Carbon Monoxide Alarm, 2nd Gen
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Google Hardwired Smart Combination Smoke and Carbon Monoxide Detector with Voice Alert in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
Google Nest Protect - Smoke Alarm - Smoke Detector and Carbon Monoxide Detector - Battery Operated , White - S3000BWES - Amazon.com