Model # MCN108

Internet #203672645

Universal Security Instruments 120-Volt AC Hardwired Carbon Monoxide and Natural Gas Alarm with Battery Backup
0042741001083

Universal Security Instruments

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

  • 9 out of 10 carbon monoxide incidents take place in the home
  • Natural gas leaks can be undetecable by the sense of smell alone
  • One installation protects against two deadly threats
$3563 /each
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Frequently Bought Together

Product Overview

  • 9 out of 10 carbon monoxide incidents take place in the home
  • Natural gas leaks can be undetecable by the sense of smell alone
  • One installation protects against two deadly threats
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
  • Click here for more information on Electronic Recycling Programs

Product Overview

  • 9 out of 10 carbon monoxide incidents take place in the home
  • Natural gas leaks can be undetecable by the sense of smell alone
  • One installation protects against two deadly threats
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
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Price
$29.17 /each
$35.63 /each
$43.99 /each
$69.00 /each
Name Hardwired Interconnected Carbon Monoxide Alarm with Battery Backup 120-Volt AC Hardwired Carbon Monoxide and Natural Gas Alarm with Battery Backup Hardwired Interconnected CO Alarm with Dualink and Relay Contacts Worry Free 10-Year Battery Operated Digital Carbon Monoxide Alarm
Brand First Alert Universal Security Instruments Gentex Kidde
Ratings (5) (11) (1) (88)
Power Source Battery Hardwired Hardwired Battery
Alarm/Detector Features Battery Back-Up Adjustable Sensitivity,Battery Back-Up,Hush Feature,Interconnected Battery Back-Up,Interconnected,Tamper Resistant 10-Year Battery,Digital display,Hush Feature,Tamper Resistant,Value Pack
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Specifications

Dimensions

Product Depth (in.)
5.63
Product Height (in.)
1.75
Product Width (in.)
5.65

Details

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
Included
Batteries
Pack Size
1
Power Source
Hardwired
Returnable
90-Day
Voltage (volts)
120

Warranty / Certifications

Certifications and Listings
1-UL Listed

Specifications

Dimensions

Product Depth (in.)
5.63
Product Height (in.)
1.75
Product Width (in.)
5.65

Details

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
Included
Batteries
Pack Size
1
Power Source
Hardwired
Returnable
90-Day
Voltage (volts)
120

Warranty / Certifications

Certifications and Listings
1-UL Listed

Questions & Answers

How is this installed; do you simply plug it in to an outlet?

Asked by: Susan
It depends on what type of existing outlet you have. We purchased this as a replacement for model USI-7390. In our case, we were able to just plug it in to the connector we already had. If you do not already have the same type of connector coming from your wall, you will need to replace your current connector with the one that is supplied.
Answered by: GettingItDone
Date published: 2017-03-15

What "natural gas" does this device detect besides carbon monoxide?

Asked by: Susan
The alarm detects Carbon Monoxide,Natural Gas,Smoke.
Answered by: CommunityAnswer
Date published: 2017-08-30

why not shipped to california?

model MCN108, 120V, co2 and nat gas
Asked by: rdy
Thank you for your recent inquiry with The Home Depot, RDY. California recently added new regulations that only allow 10 year models of these alarms, this is a 5 year model and does not fit with those new regulations. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.
Answered by: THDSupport
Date published: 2015-11-17

Which brands are not compatible with this unit

Asked by: KennyG
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Customer Reviews

120-Volt AC Hardwired Carbon Monoxide and Natural Gas Alarm with Battery Backup is rated 3.4 out of 5 by 11.
Rated 1 out of 5 by from Purchased 4, opened one and the date stamped on it was from two years ago. Warranty is for 7 year... Purchased 4, opened one and the date stamped on it was from two years ago. Warranty is for 7 years from date stamped on unit not from sales receipt so I returned them.
Date published: 2017-02-01
Rated 5 out of 5 by from Perfect Fit Replacement I bought and installed these to replace my home's original alarms after they expired. It was the same plug design so it was fast and easy. No problems so far.
Date published: 2017-03-07
Rated 4 out of 5 by from Replaced existing unit/this is a replacement for one that had been discontinuted Replaced existing unit/this is a replacement for one that had been discontinuted
Date published: 2016-12-20
Rated 1 out of 5 by from Alarm goes off for no reason. Alarm goes off for no reason.
Date published: 2017-03-05
Rated 1 out of 5 by from Piece of garbage. Started giving false readings after a year, completely broke a few months later. Manufacturer wants $9 + s/h to replace via warranty, which is 1/3 the cost of the product in the first place. When I challenged, they said the manual states I have to pay that. Note that this does not even come with a manual. Look elsewhere, buyer beware.
Date published: 2016-04-29
Rated 4 out of 5 by from Easy install to take care of natural gas alarm Very easy to install and test right out of the box. This product was a fast way to handle the natural gas alarm for code requirements! I would recommend this product to other friends.
Date published: 2016-07-21
Rated 4 out of 5 by from 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.
Date published: 2013-01-29
Rated 4 out of 5 by from 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.
Date published: 2013-07-22
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