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| Tools & Home Improvement > Safety & Security > Fire Safety > Smoke Alarms |
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| Product Description If a fire were to begin in your basement and the alarm there sounded, you may not hear it right away if you're sound asleep two floors up. With traditional battery-operated alarms, you lose valuable time waiting for the smoke to rise to another alarm, on another level, before the alarm on your floor sounds.In the event of a fire every second counts. First Alert SA521CN ONELINK Hardwire Wireless Smoke Alarm with Battery Backup - Amazon.com Shipping Weight: 2 pounds | ||||||||
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