1039830 Smoke Alarm, Photoelectric Sensor

First Alert 1039830 Smoke Alarm, Photoelectric Sensor

Price $60.56
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The First Alert SA521CN-3ST interconnected smoke alarm with hardwire adapter included allows you to create an interconnected fire alarm system without the hassle of wiring. Use this smoke detector to replace an existing hardwired smoke alarm and then install additional First Alert wireless alarms for an interconnected safety network (additional alarms sold separately). This hardwired smoke and fire detector can connect and communicate with up to 18 compatible alarms, so when one alarm is triggered, the entire system will sound. Equip with battery backup, this smoke and fire alarm allows for protection during power outages.

  • Hardwired smoke alarm can communicate wirelessly with other compatible alarms to create a fire alarm system
  • Hardwired smoke alarm can communicate wirelessly with other compatible alarms to create a fire alarm system
  • When one alarm is triggered, all connected alarms will sound
  • Integrated battery backup allows continuous detection during power outages
  • Photoelectric sensor detects smoke while minimizing false alarms
  • One button silences a false alarm and tests the smoke detector
  • Two AA battery backup

Theisen's standard returns and exchanges policy: All returns must be completed within 90 days of purchase unless otherwise noted. All items must be in new, unused condition and contain all original packaging and accessories. Some exclusions apply. For more information on our policy or to learn how to return an item click here.

Proposition 65 Warnings! 

Note: These warnings do not apply to food products.

 WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate, which are known to the State of California to cause cancer and birth defects or other reproductive harm.

 WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov.