X-Sense Smoke and Carbon Monoxide Detector Combo, Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with LCD Display & 10-Year Battery, RF Interconnected Model, 6-Pack - Amazon.com
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Samsung 10-Year Battery-Operated Smart Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
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