Universal Security Instruments 120-Volt AC Hardwired Carbon Monoxide and Natural Gas Alarm with Battery Backup-MCN108 - The Home Depot

Universal Security Instruments

Model # MCN108

Internet # 203672645

120-Volt AC Hardwired Carbon Monoxide and Natural Gas Alarm with Battery Backup

Universal Security Instruments 120-Volt AC Hardwired Carbon Monoxide and Natural Gas Alarm with Battery Backup

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

$39.99 / each


Model # MCN108

Internet # 203672645

Universal Security 2-in-1 Smart Alarm uses a single sensor to detector both CO and Natural Gas. Microprocessor Intelligence provides superior nuisance alarm resistance, along with temperature and humidity compensation, self diagnostics and Quick Find alarm origination features. Perfect for new or replacement installations. This 120 Volt AC/DC hardwired combination carbon monoxide and natural gas alarm offers time-saving installation features, value and quality.

  • 120 Volt AC Wired-In
  • 9 Volt battery backup (battery included)
  • Self diagnostic feature
  • Product End-of-Life service warning
  • Test/reset button
  • Quick draw battery drawer
  • Interconnectable up to 24 compatible devices
  • Battery activation pull tab
  • Loud 85dB alarm
  • 5 Year limited warranty

Info & Guides

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Assembled Depth (in.)  5.63 in  Assembled Height (in.)  1.75 in 
Assembled Width (in.)  5.65 in 
Alarm Type  Carbon Monoxide,Natural Gas  Alarm/Detector Features  Adjustable Sensitivity,Battery Back-Up,Hush Feature,Interconnected 
Battery Back-Up  Yes  Commercial / Residential  Residential 
Connector/Contact Type  2-Wire  Electrical Product Type  Carbon Monoxide Detector 
Included  Batteries  Power Source  Hardwired 
Returnable  90-Day  Voltage (volts)  120 
Warranty / Certifications
Certifications and Listings  1-UL Listed 


Rated 4 out of 5 by 4 reviewers.
Rated 4 out of 5 by It has great features. The features are great. Customer Service was great in assistance. It was received before the time frame given. April 29, 2014
Rated 4 out of 5 by It's exactly what I was looking for. Erik McCook who is employed in your store at 2000 Hempstead Turnpike in East Meadow, LI is an outstanding associate. He has helped me with so many items I have purchased in your store and most recently with this Carbon Monoxide product. Because of his help I have always found what I needed. Home Depot is very fortunate to have him as a part of it's team. March 28, 2014
Rated 4 out of 5 by A little disappointed with this... I purchased 4 brand new ones to install cause I like the dual sensor. But one of them went out just after 60 days. Was quickly replaced by the manufacturer, but I am worried about the rest. July 22, 2013
Rated 4 out of 5 by pretty good unit Woulld have preferred to buy the three in one unit: smoke CO;Gas but it was out of stock on line and the makers web site no longer shows it as a product. I think the test alarm should be longer. I could not judge the sould level because it is so brief.. Installation was simple, Be sure to check distance from the souces recommendation in the instructionsbefore placing. January 29, 2013
1-4 of 4


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