First Alert BRK CO511 Carbon Monoxide (CO) Detector Wireless Interconnected with Voice and Location - Combination Smoke Carbon Monoxide Detectors - Amazon.com
First Alert Battery-operated Smart Combination Smoke and Carbon Monoxide Detector in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
First Alert Battery Powered SCO500B Wireless Interconnected Photoelectric Smoke and Carbon Monoxide Combo Alarm with Voice and Location - Combination Smoke Carbon Monoxide Detectors - Amazon.com
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5800CO - Resideo Honeywell Home Wireless Carbon Monoxide Detector
Carbon Monoxide and Smoke Alarms , iFanze Sensitive Wireless Carbon Monoxide Alarm CO Detector with LCD Digital Display Plug-in Wall for Home Office Factory - Walmart.com
PROSiXCO - Resideo Honeywell Home Wireless Carbon Monoxide Detector (for ProSeries Control Panels)