First Alert Onelink Wireless Interconnect Smoke Detector with DVD (2-Pack)-SA511CN2-3ST - The Home Depot

First Alert

Model # SA511CN2-3ST

Internet # 204357240

Onelink Wireless Interconnect Smoke Detector with DVD (2-Pack)

First Alert Onelink Wireless Interconnect Smoke Detector with DVD (2-Pack)

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

$89.97 / each


Model # SA511CN2-3ST

Internet # 204357240

The Wireless Smoke Alarm detects smoldering fires and has a voice alarm that's proven to wake children up better than standard alarms. It also has a horn tone with low frequencies for the hearing impaired and elderly. This alarm will sound if it detects smoke even during power outages. It uses a secure radio frequency to communicate between alarms, which are perfect for linking alarms on different floors or in stairwells. No wires necessary and it's programmable with up to eleven locations. Other features include a test and silence button, a latching indicator that remembers which unit initiated the alarm and smart technology that helps reduce false alarms. The SA511B can be connected to other smoke alarms and offers 360˚ access to the smoke sensor. If one unit triggers an alarm, all smoke alarms in the series will sound. The SA511B features a perfect mount system for perfect alignment, a low battery latch and (2) silence features. The Wireless Smoke Alarm is warranted to the original purchaser for a period of 10 years. First Alert invests time and research into providing dependable and hardworking products. Committed to innovation and value, first alert improves safety in and around the house. This product comes in a 2-pack with a DVD.

  • Interconnects with other alarms without wires
  • 1-button silence and test
  • Photoelectric smoke sensing technology reduces nuisance alarms
  • Exclusive voice warning with location in addition to horn
  • Operates on 2 AA batteries

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


Assembled Depth (in.)  5 in  Assembled Height (in.)  5 in 
Assembled Width (in.)  2 in 
Alarm Sensor Type  Photoelectric  Alarm Type  Smoke 
Alarm/Detector Features  Interconnected,Voice Alert  Battery Back-Up  No 
Battery Power Type  Alkaline  Battery Size  AA 
Commercial / Residential  Residential  Connector/Contact Type  None 
Electrical Product Type  Smoke Detector  Included  No additional components or accessories are included 
Power Source  Battery  Returnable  90-Day 
Voltage (volts)  1.5 
Warranty / Certifications
Certifications and Listings  No Certifications or Listings 


Rated 4.5 out of 5 by 2 reviewers.
Rated 5.0 out of 5.0 by Great units easy to install and giving better protection for multiple areas The units were quite easy to program and install for the wireless connection. The video instructions on the CD were good. We have noticed that the unit near the kitchen, does not have the many nuisance alarms that our former unit (of another type) had. In our place, the wireless connection with alarm signals at all units are important, as the garage is under the living quarters. An alarm sounding in the garage would probably not be heard in the bedrooms, if it were not for the wireless connectivity in this system. June 3, 2014
Rated 4.0 out of 5.0 by Installs easily Installs easily and seems to work pretty well. The instructions actually make it seem more complicated than it really is. The alarm is nice and loud, although the talking feature seems more of a gimmick. Somewhat on the pricey side. January 13, 2015
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