20 Best Sa511cn2-3st in 2024 Reviews and Buying Guide

3,647 Reviews Scanned

Bestseller No. 1
First Alert SA511CN2-3ST Wireless Interconnected Smoke Alarm with Voice Location, Battery Operated,...
  • The front cover design of the alarm may vary but product function remains the same.
  • Help keep your family safe with these battery operated smoke alarms that wirelessly interconnect with each other and other First Alert enabled alarms...
  • Voice alarm with 11 programmable locations tells you where the danger is so you can choose the best evacuation route; Loud, 85-decibel siren sounds to...
  • Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; Helps minimize the number of false...
  • Battery powered alarm requires no rewiring for installation and provides continued monitoring even if there's a power failure; use with Polaroid AA...
Bestseller No. 2
First Alert SCO501CN-3ST Wireless Interconnected Combination Smoke and Carbon Monoxide Alarm with...
  • The front cover design of the alarm may vary but product function remains the same.
  • Battery operated smoke and carbon monoxide alarm can be installed easily
  • Connects multiple alarms together for wireless safety network
  • Voice alarm gives clear indication of where the problem is located
  • Features photoelectric smoke sensor and electrochemical CO sensor
Bestseller No. 3
X-Sense 10-Year Battery Wireless Interconnected Smoke Detector Fire Alarm with Over 820 ft...
  • Detection Anywhere: Features wireless interconnection so that if one alarm is triggered, they all go off, and they stay connected using radio...
  • Ready to Use: The multi-pack detectors have already been connected for instant use, and you can connect up to 24 Link+ wireless alarms at a time
  • Customizable Wireless Network: For a customized network, add new devices to the existing network, or disconnect the devices and create multiple...
  • Battery Powered Smoke Alarm: Built with a 10-year sensor and powered by a sealed 10-year lithium battery that doesn’t need to be replaced
  • Premium Quality Material: This smoke detector is made from an upgraded premium material that is durable, corrosion-resistant, and flame-retardant
SaleBestseller No. 4
First Alert BRK 3120B Hardwired Photoelectric and Ionization Smoke Alarm with Battery Backup, Dual...
  • The front cover design of the alarm may vary but product function remains the same.
  • The First Alert Hardwired Dual Sensor Photoelectric and Ionization Smoke Alarm with Battery Backup is designed to help provide peace of mind.
  • This dual sensor, photoelectric and ionization alarm alerts you to both smoldering and fast-flaming fires in the event of a home fire emergency.
  • Hardwire alarm includes battery backup for protection during power outages.
  • Two latching features help indicate a low battery or the originating alarm in a system.
SaleBestseller No. 5
First Alert Battery Powered Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm...
  • The front cover design of the alarm may vary but product function remains the same
  • This device is certified to work with Ring; Requires Ring Alarm Base Station to Work with Ring. Enjoy improved compatibility, easier setup and a...
  • Receive real-time notifications in the Ring App when smoke or carbon monoxide is detected. Do not insert the batteries into your First Alert alarm...
  • Certified to work with smart home systems such as Ring Alarm Base Station, Samsung SmartThings, and Nexia Home Intelligence when connected to a Z-Wave...
  • Help keep your family safe with this battery-powered smoke detector and carbon monoxide alarm; includes 2 AA batteries
SaleBestseller No. 6
First Alert SCO7CN Combination Smoke and Carbon Monoxide Detector with Voice and Location, Battery...
  • The front cover design of the alarm may vary but product function remains the same
  • Item Package Dimension: 8.49L x 6.68W x 3.61H inches
  • Item Package Weight - 0.63 Pounds
  • Item Package Quantity - 1
  • Product Type - GAS SMOKE FIRE ALARM
Bestseller No. 7
Smoke Alarm Wireless Interconnectable Fire Alarm with Built-in Lithium Battery and Professional...
  • WIRELESS INTERCONNECTION FUNCTION: This alarm can realize the interconnection between products. When an alarm detects smoke and the alarm sounds,...
  • PHOTOELECTRIC TECHNOLOGY: This alarm is a photoelectric smoke alarm with wireless. With the photoelectric technology, it is more sensitive to...
  • 10 YEARS OF LIFE: This fire alarm has a built-in 3V lithium battery, it can ensure that the alarm will be used for 10 years without replacing the...
  • LOW BATTERY WARNING: Low battery voltage signal ensures the smoke detector can work normal. When the battery voltage is lower than threshold, an...
  • TEST&SLIENCE BUTTON: The Test / Silence button allows you can often test the alarm to test the unit for proper operation, and easily silence the alarm...
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FAQ:

Q: How does the sa511cn2-3st work?

A: The SA511CN2-3ST units use what is called a mesh network, meaning that the signal is not linear from one unit to the next. The benefit of this technology, according to First Alert, is that “the mesh network of alarms re-routes and resends the signal via the other alarms, providing a greater chance all alarms will receive the signal.”

Q: How does the First Alert sa511cn2-3st Wireless smoke detector work?

A: The First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice & Location is battery operated and features an 85-decibel alarm with voice alerts that tell you where the danger is located. A photoelectric sensor detects smoke while minimizing false alarms from cooking or shower steam.

Q: How does the First Alert pr710 compare to the sa511cn2-3st?

A: For roughly $15 more, First Alert sells a similar model with a pathway light that turns on when the alarm activates. The First Alert PR710 (right) is noticeably thinner than the First Alert SA511CN2-3ST (left). Photo: Michael Murtaugh

Q: Is the First Alert sa303cn3 battery powered smoke alarm any good?

A: The First Alert SA303CN3 is slightly better at detecting fast, flaming fires than the rest of our picks, but it’s generally slower to go off, and it’s best as a supplemental part of a system. For the most complete and effective smoke alarm system, we also recommend adding one First Alert SA303CN3 Battery Powered Smoke Alarm per floor.