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Google Nest Protect 2nd Generation (Battery) Smart Smoke/Carbon Monoxide Alarm White S3000BWES - Best Buy
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Nest's Protect smoke detector warns you before it's about to go off; coming soon for $129 | Engadget
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Google Nest Protect 3-pack (2nd Generation) 3-pack of battery-operated smoke & carbon monoxide detectors at Crutchfield
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Google Nest Protect 2nd Generation (Battery) Smart Smoke/Carbon Monoxide Alarm White S3000BWES - Best Buy
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