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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: 38 Write a review »

  0 of 0 people found the following review helpful:
 
thanks November 30, 2016
Reviewer: Margaret Rick from Maple Grove, MN United States  
very fast service

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Smoke Alarm October 13, 2016
Reviewer: marilyn thompson from maple grove, MN United States  
The service was excellent, prompt and correctly processed.

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  0 of 0 people found the following review helpful:
 
SA 520 September 29, 2016
Reviewer: WB from Knoxville, TN United States  
Of the 25 smoke detectors received, 3 are defective. That said, I have installed over 340 of this same model in a multi-family complex and have had excellent results.
I can only guess I got a bad batch.

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  0 of 0 people found the following review helpful:
 
First Alert SA521CN(SA520 September 14, 2016
Reviewer: Susan M Roth from Maple Grove, MN United States  
Don't know . The city firefighters were out yesterday to install. They couldn't get these to "talk" to each other. Supposedly 2 replacements are on the way?

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  0 of 0 people found the following review helpful:
 
Smoke Alarm June 4, 2016
Reviewer: Thomas Datz from Manchester Center, VT United States  
Great product. Easy installation.

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