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First Alert SA521CN(SA520) ONELINK Hardwired Wireless Photoelectric Smoke Alarm with Battery Backup
First Alert SA521CN(SA520) ONELINK Hardwired Wireless Photoelectric Smoke Alarm with Battery Backup


 
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Description
 
The SA521CN(SA520) is a Hardwired/Wireless/Photoelectric smoke detector. With the First Alert SA521CN(SA520) you can easily connect the alarm to a network of other smoke alarms through its wireless connection as well as the hardwiring. It works as a bridge unit to connect your existing hardwired alarms and expand with other Onleink Wireless alarms. This 120V AC system can replace any standard fire alarm that is hardwired. You can then expand on your existing hardwired network by Wireless link to any of the other Onelink Wireless Smoke or CO alarms.

SPECS:
OneLink enabled alarm
Bridge Unit - Wireless Photoelectric Hardwired Smoke Alarm
Single button test/silence
Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm
Add additional OneLink alarms and hardwired alarms. Links all alarms together for a complete system.
Hardwired interconnect and RF Interconnect: reliable and secure radio frequency communication between alarms. 915 MHz frequency with 65,000 security codes and 3 channel frequency hopping.
Optipath 360 TechnologyTM - patented technology provides 360 degrees of direct access to the smoke sensor.
Perfect Mount - allows for easy alignment of alarm
Spread Spectrum Horn Tone - Lower and varying frequency makes it easier for the elderly with normal aged related hearing loss to hear the horn.
Latching Features: Alarm Latch - remembers which unit initiated an alarm. Low Battery Latch: Visually indentifies unit in low battery condition.
10-Years Limited Warranty
Model # SA520
Weight 9.3 oz
Operating Voltage 120V AC with battery backup (Two 1.5V AA Batteries)
Humidity Range 10% to 90% relative humidity (RH)
Smoke Sensor Photoelectric
Listing ETL to UL 217 standard

Average Rating: 5 of 5 Total Reviews: 43 Write a review »

  0 of 0 people found the following review helpful:
 
First Alert SA521CN(SA520 May 3, 2017
Reviewer: Edward Eldridge from Constantia, NY United States  
Easy to connect with other types of detectors

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Successfully bridges wired and wireless alarms April 22, 2017
Reviewer: Ben from Acton, MA United States  
I wirelessly connected three SCO501CN, a CO511B, and SA521CN. The SA521CN was hard-wired to a 3120B in my furnace room. Hitting 'test' in the furnace room was heard throughout my house!

The OneLink worked great and the SA521CN worked as a bridge between hard-wired and wireless connections.

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  0 of 0 people found the following review helpful:
 
No problems and works with my other wireless units April 14, 2017
Reviewer: Anonymous Person from KS, United States  
This was easy to install and worked with my other wireless units with no problems.

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  0 of 0 people found the following review helpful:
 
Great Experience March 25, 2017
Reviewer: Daniel MacDonald from New Boston, NH United States  
For all of the purchases I would not think of going to any other outlet for these items. SmokeAlert's employees provide the best advice and expert designs to ensure I get what I need without overspending. Can't find this kind of customer service anywhere,..

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  0 of 0 people found the following review helpful:
 
Outstanding Product and Prompt Personal Service January 3, 2017
Reviewer: Dawn O'Connor from New Smyrna Beach, FL United States  
Everything about this experience was A1.  It is obviously not Amazon or Wayfair--I called on a Sunday and someone answered the phone and actually helped me..it was a refreshingly awesome shopping experience that is often missing with the big box shopping; my husband is over the moon with the 3 in one product, and we were especially happy to receive a quality product at a value price!  Can't say enough about this company and I often don't take the time to write reviews.

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