First Alert Smoke Alarm 120V ac/dc SA521CN-3ST

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FIRST ALERT SMOKE ALARM
*120V AC/DC
*Easily expand an existing
interconnected 120V AC system
by replacing one alarm in the
series with this alarm
*Add additional battery
operated First Alert Onelink
enabled alarms to expand
without wires
*Photoelectric smoke alarm
reduces nuisance alarms
*Alarm and low battery
silence feature
*10 year limited warranty

In stock

Price: $53.99

Manufacturer Part Number: SA521CN-3ST


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