Gentex Photoelectric Smoke Alarm with Plug-in Line Cord, ADA Strobe and Battery Backup-7139LS - The Home Depot
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Model # 7139LS

Internet # 202934196

Photoelectric Smoke Alarm with Plug-in Line Cord, ADA Strobe and Battery Backup

Gentex Photoelectric Smoke Alarm with Plug-in Line Cord, ADA Strobe and Battery Backup

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

$98.77 / each


Model # 7139LS

Internet # 202934196

The 7139LS is a 120VAC with 9VDC battery back-up photoelectric smoke alarm designed to give reliable early warning of the presence of smoke where both audible and visual alarms are required. The 7139LS a 9-foot plug-in line cord for ease of installation in any space where a visual alarm is required. Fully insect screened.

  • 120 VAC with 9VDC battery back-up
  • 90dBA temporal 3 evacuation piezo horn with 3100Hz (nominal) horn frequency
  • On-site washing program
  • Nominal 2.5% sensitivity
  • 3 position test switch
  • Low or missing battery indicator
  • 9' plug-in line cord
  • 1 year warranty from date of purchase

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Alarm Sensor Type 
Alarm Type 
Alarm/Detector Features 
Battery Back-Up,Strobe Light,Tamper Resistant 
Commercial / Residential 
Commercial / Residential 
Connector/Contact Type 
Electrical Product Type 
Smoke Detector 
Power Source 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 


Rated 4.7 out of 5 by 7 reviewers.
Rated 4.0 out of 5.0 by Smoke alarm with strobe and battey backup Another great product. Easy to install and like that it has battery back up. April 28, 2015
Rated 5.0 out of 5.0 by Just what was needed I purchased this smoke alarm for my parents, who are hearing impaired. It was easy to install -- just hang on the wall and plug it in, rather than requiring hard wiring and an electrician. They can even take it with them when they travel. We hope it never goes off, but are glad to know that the very loud noise and flashing lights will wake them. January 10, 2012
Rated 4.0 out of 5.0 by Extremely quick shipping, good product Extremely quick shipping, good product. However it is a shame this cannot be stocked on the normal shelves in the stores. July 17, 2012
Rated 5.0 out of 5.0 by Does what it's supposed to What can you say about a smoke detector. It does what it should. It's very loud for those that can hear, and offers a very bright strobe to help the deaf. The price at Home Depot was the best I could find. November 22, 2011
Rated 5.0 out of 5.0 by Great Product ! This item was so easy & not hard to figure out upon reading instructions. I had it all set & tested within 5 minutes. I am hearing impair and not able to hear at night when sleeping when taking off my cochlear implant ( speech processor ). It really works ! I strongly recommend it to anyone who has trouble hearing. Flasher is bright enough to get your attentions. February 16, 2014
Rated 5.0 out of 5.0 by The production I ordered is great features for hearing impaired, The production is good working properly in my home. June 3, 2014
Rated 5.0 out of 5.0 by Great product I had priced this from many sites and stores. This is the best price that I found and it works perfectly. December 13, 2013
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