First Alert Wireless Interconnect System
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First Alert Wireless Interconnect System

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First Alert OneLink Wireless Alarms communicate with each other. When one sounds they all sound. For home residential use. Replace any existing hardwired alarm with the SA520 “Bridge Unit” Smoke Alarm and the wirelessly connect up to 18 OneLink battery alarms with no additional wiring.

Features:

• Available Onelink Wireless alarms include Photoelectric Smoke alarm, CO alarm and combination Smoke & CO Alarm
• Alarm latch: Remembers and identifies initiating alarms
• Single button test / silence features

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