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How to Replace Hardwired Smoke Detector – Safely Update Your Smoke Detectors with Kidde FireX - YouTube
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1275CA : Kidde 120V Hardwire Ionization Smoke Alarm, Battery Backup, Replacement for 1235CA | AMRE Supply
Firex® by Kidde® HD135F Wire-In Heat Detector Alarm, 10 ft Range, 120 VAC, Red LED Display | Steiner Electric Company
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