First Alert Battery Operated 10-Year Lithium Smoke Alarm-SA305CN3 at The Home Depot
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First Alert

Model # SA305CN3

Internet # 202433884

Battery Operated 10-Year Lithium Smoke Alarm

First Alert Battery Operated 10-Year Lithium Smoke Alarm

This item has been discontinued.
The Home Depot no longer carries this specific product.

$14.97 / each
Item cannot be shipped to the following state(s): GU,PR,VI


In Stock



Model # SA305CN3

Internet # 202433884

First Alert smoke alarm with long-life lithium battery. Long life lithium battery reduces costly battery replacement and frequent maintenance. Mute feature silences nuisance alarms. Single button tests detector functions. Easy access front loading battery door: no need to remove alarm from ceiling to change battery. Ideal for Hallways, Bedrooms and Living areas especially in hard to reach locations. 10-year limited warranty. Meets UL standards.

  • 9-volt removable 10-year lithium battery
  • Mute button
  • EZ access battery door
  • Optional theft-prevention lock to secure the detector
  • Ionization smoke sensor
  • Long life lithium battery included
  • Loud 85 dB alarm
  • 10-year limited warranty
  • Meets UL217 standard
  • America's most trusted brand in home safety

Info & Guides

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Alarm Sensor Type  Ionization  Alarm Type  Smoke 
Alarm/Detector Features  10-Year Battery  Assembled Depth (in.)  4.34 in 
Assembled Height (in.)  1.9 in  Assembled Width (in.)  4.34 in 
Battery Back-Up  Yes  Battery Power Type  Lithium Ion 
Battery Size  Lithium Ion  Certifications and Listings  1-UL Listed 
Commercial / Residential  Commercial / Residential  Connector/Contact Type  None 
Electrical Product Type  Smoke Detector  Included  Batteries 
Returnable  90-Day  Voltage (volts) 



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