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First Alert battery operated smoke alarms are a fundamental component to any household safety plan.  Convenient battery drawers open for easy battery replacement without removing alarm from the ceiling or wall.



  • New! Photoelectric
  • Smoke / CO Combination
  • Dual Sensor Photo/Ion
  • Photoelectric
  • Ionization
  • Carbon Monoxide Alarms
  • Wireless Smoke / CO Alarms
  • Child Awakening
  • Water Alarm
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P1000
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P900
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P900E
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PC900
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PC900V
Introducing the newest, stylized smoke alarms from First Alert. Packing all the power of an advanced alarm in a fraction of the size.
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SCO5CN
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SCO7CN
These combination alarms help protect from smoke, fire and carbon monoxide poisoning. Both feature a nuisance resistant photoelectric smoke sensor and the electrochemical carbon monoxide sensor. Also check out our models with exclusive voice with location and patented smoke entry features!
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SA320CN
Featuring the best qualities of both smoke alarm technologies, the Dual Sensor Photo/Ion Smoke Alarms help reduce unnecessary alarms while protecting against both fast flaming and smoldering fires.

For maximum protection: use both types of smoke alarms or this Dual Sensor Photo-Ion Smoke Alarm in every bedroom and on every level of your home.
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SA710CN
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SA710LCN
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SA720CN
Photoelectric technology is generally more sensitive than Ionization technology at detecting large particles, which tend to be produced in greater amounts by smoldering fires, which may smolder for hours before bursting into flame. Sources of these fires may include cigarettes burning on couches or bedding.
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SA300CN2
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SA300CN3
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SA303CN3
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SA304CN3
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SA304LCN
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SA305CN
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SA340CN
Ionization technology is generally more sensitive than photoelectric technology at detecting small particles, which tend to be produced in greater amounts by flaming fires, which consume combustible materials rapidly and spread quickly. Sources of these fires may include paper burning in a wastebasket or a grease fire in the kitchen.
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SA501CN-3ST
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SA501CN2-3ST
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SA511CN2-3ST
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SCO501CN-3ST
These battery-powered Wireless Interconnect Alarms are great because when one alarms sounds, they all sound … helping you become aware of the presence of smoke, fire and carbon monoxide more quickly.

These types of alarms are becoming more popular in homes today where there aren’t already hardwired interconnected alarms. Some models contain a voice feature in addition to the traditional horn sound to alert you of the presence of smoke or carbon monoxide.  You’ll of course need at least two Wireless Interconnect alarms to create an alarm network, and here’s how the voice feature works: Each alarm has pre-programmed locations you can assign depending on where you install it. When one alarm detects smoke or carbon monoxide, all of the First Alert Wireless Interconnect Alarms will sound with a voice that notifies you of the type of danger and the location is announced. This can help you identify a better escape route out of the home during a smoke, fire or carbon monoxide emergency.
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ONELINK-C2
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SCO7CN-C
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SCO7CN-C2
These alarms are specifically designed to help wake up young children in your home.
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WA100
Help protect your home from potential water damage by placing a Furst Alert Water Alarm anywhere a potential leak may occur.
©2011 BRK Brands, Inc. All rights reserved. Used under license by The First Alert Trust.