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Kidde Firex Smoke & Carbon Monoxide Detector, Hardwired with nine-V Battery Backup & Voice Alarm, 3-Pack 21029901 - The Home Depot
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Kidde Battery Operated Smoke & Carbon Monoxide Detector with LED warning indicators & Test-Hush Button - Walmart.com
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Kidde 10-Year Worry Free Smoke & Carbon Monoxide Detector, Lithium Battery Powered with Photoelectric Sensor and Voice Alarm 21030866 - The Home Depot
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Kidde 21007624 AC Photoelectric Smoke and Carbon Monoxide Detector Alarm | Hardwired with Battery Backup | Model # KN-COPE-IC - Photoelectric Smoke Detector Carbon Monoxide Hardwired - Amazon.com
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