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USI MPC122S Hardwired 2-in-1 Photoelectric Smoke & CO Alarm with 10 Year Tamper Proof Sealed Battery Backup
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First Alert 1039871/PRC710V 10 Year 2 In 1 Photoelectric Smoke Detector With Carbon Monoxide Alarm: Fire & Smoke Alarms & Accessories (029054019196- 1)
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