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First Alert SA521CN-3ST First Alert SA521CN-3ST Hardwired Onelink Wireless Smoke Alarm, 120 VAC, Photoelectric, 85 dB

First Alert SA521CN-3ST Hardwired Onelink Wireless Smoke Alarm, 120 VAC, Photoelectric, 85 dB

SKU: 587906
$ 74.85 / ea

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About the First Alert SA521CN-3ST Hardwired Onelink Wireless Smoke Alarm, 120 VAC, Photoelectric, 85 dB

First Alert SA521CN-3ST Hardwired Onelink Wireless Smoke Alarm, 120 VAC, Photoelectric, 85 dB

Mpn # SA521CN-3ST
Shipping Dimensions 8.8" x 7.1" x 10.5"
Weight 0.80 lbs.
Shipping Dimensional Weight 3.67 lbs.
  • Type: Hardwired, Onelink, Wireless
  • Voltage Rating: 120 VAC
  • Battery Size: (2) AA
  • Sensor Type: Photoelectric
  • Sound Level: 85 dB
  • Includes: Mute Button, Test/Silence Button
  • Standards: UL 217, FCC Compliant
  • Wireless interconnectivity, wirelessly connect up to 18 one link alarms in your home and when one sounds, they all sound for increased whole home protection
  • 120 VAC hardwired, easily replace one existing hardwired alarm with one link SA521 and then add one link battery operated alarms to connect wireless alarms with hardwired alarms when one sounds, they all sound
  • Battery backup, provides consistent protection for added safety during power outage
  • Photoelectric smoke sensing, optimal protection from smoldering fires. plus, reduces false alarms like those caused by cooking fires and shower steam
  • Mute button, mutes unnecessary alarms immediately. also tests alarm function with same button
  • Eco friendly, completely recyclable as an electronic device
  • EZ access battery door, no need to remove alarm from ceiling to change battery

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