First Alert Brk Hardwired Combination Smoke and Carbon Monoxide Detector with Voice Alert in the Combination Smoke & Carbon Monoxide Detectors department at Lowes.com
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Kidde KN-COPE-IC Firex™ Hardwired Combination Carbon Monoxide & Photoelectric Smoke Alarm 120V AC / DC | BuyRite Electric
Kidde Combination Smoke and Carbon Monoxide Detector with Voice Alert at Lowes.com