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First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location, Battery Operated, Pack of Two

3.7 out of 5 stars 631 customer reviews

Price: $68.41 & FREE Shipping.Details
2 Pack
Wireless Interconnect
    This fits your .
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  • Interconnected alarms all sound when one is activated, increasing safety. AA Batteries Required (Best with Polaroid AA Batteries)
  • Voice alarm tells you where the danger is, so you can choose the best evacuation route
  • Battery-operated alarm installs anywhere, requires no electrician
  • Photoelectric sensor reduces false alarms
  • Wirelessly connect up to 18 alarms in your home. This feature allows for the maximum in whole home protection. Comes in a pack of two alarms
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Frequently bought together

  • First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location, Battery Operated, Pack of Two
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  • First Alert SA521CN ONELINK Hardwire Wireless Smoke Alarm with Battery Backup
Total price: $147.87
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Size: 2 Pack | Style: Wireless Interconnect
  • Buy Used and Save: Buy a Used "First Alert SA511CN2-3ST Interconnected Wireless S..." and save 77% off the $171.99 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

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Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart
Customer Rating 3 out of 5 stars (631) 4 out of 5 stars (161) 4 out of 5 stars (1043) 4 out of 5 stars (404) 4 out of 5 stars (455) 4 out of 5 stars (547)
Price $68.41 $44.99 $28.81 $36.92 $44.91 $44.97
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Amazon.com Amazon.com Amazon.com Amazon.com
Color White White White
Item Dimensions 5.13 x 2.38 x 5.13 in 8.25 x 6.75 x 2.5 in 4.92 x 4.92 x 0.96 in 5 x 5 x 2 in 8 x 7 x 2.5 in

Product description

Size:2 Pack  |  Style:Wireless Interconnect

Product Description

The First Alert SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice Location features an 85-decibel siren and voice alarm that tells you where the danger is located. The smoke detectors are interconnected and communicate wirelessly, so when one unit sounds an alarm, they all go off to alert you of potential danger. The photoelectric sensor is designed to be sensitive to smoke while reducing false alarms from cooking smoke or shower steam. The smoke detector requires two AA batteries and can be installed easily with no electrician or hardwiring needed.

From the Manufacturer

In the event of a fire every second counts. If a fire were to begin in your basement and the alarm there sounded, you may not hear it right away if you're sound asleep two floors up. With traditional battery-operated alarms, you lose valuable time waiting for the smoke to rise to another alarm, on another level, before the alarm on your floor sounds. But with First Alert ONELINK alarms, if one detects danger, they all sound. This can alert you sooner, and it increases your chances of getting out safely. Until now, alarms that could signal each other were only available in homes with hardwired alarms requiring installation from an electrician. But First Alert ONELINK alarms communicate without wires. ONE Link-with Voice Location Smoke alarm is programmable with up to 11 locations in your home - when alarm sounds it will tell you the location of the smoke. The wireless feature allows multiple alarms to talk to each other - when one alarm sounds, they all sound. The wireless network operates on 914 MHZ 3 channels and will not interfere with other electronics. The ONELINK smoke alarms uses photoelectric sensing technology which is environmentally friendlier and which reduces nuisance alarms, making it ideal for cooking areas. It is also great for sensing slow smoldering fires quickly. A low battery signal alerts you to replace the battery. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. The AA batteries are easy to install in the convenient pullout battery drawer. Two AA batteries included.


Product information

Size:2 Pack  |  Style:Wireless Interconnect

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Top customer reviews

October 18, 2015
Size: 1 Pack|Style: 10 Year Battery|Verified Purchase
152 people found this helpful
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December 21, 2016
Size: 2 Pack|Style: Wireless Interconnect|Verified Purchase
53 people found this helpful
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December 27, 2016
Size: 1 Pack|Style: 10 Year Battery|Verified Purchase
25 people found this helpful
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May 8, 2017
Size: 2 Pack|Style: Wireless Interconnect|Verified Purchase
17 people found this helpful
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November 2, 2016
Size: 2 Pack|Style: Wireless Interconnect|Verified Purchase
30 people found this helpful
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