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Universal Security Instruments MCND401B M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 120-Volt Battery Backup

3.5 out of 5 stars 279 customer reviews

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  • Plug-in Carbon Monoxide and Natural Gas alarm with 9 volt battery backup (battery included)
  • 3 separate colored LED lights display status of alarm power, CO, and gas levels
  • Microprocessor intelligence helps eliminate nuisance alarms caused by non-hazardous sources
  • Compact design covers only one outlet, no wiring required
  • Digital display screen provides CO parts per million levels and displays "GAS"
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Customer Rating 3 out of 5 stars (279) 4 out of 5 stars (2631) 3 out of 5 stars (231) 4 out of 5 stars (39) 4 out of 5 stars (6) 4 out of 5 stars (134)
Price From $30.36 $29.89 $49.41 $47.99 $23.99 $35.55
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Available from these sellers Homegoods Shop Amazon.com Homegoods Shop HYTDirect Amazon.com
Color Classic White White Gray, White Classic White White 2.63
Item Dimensions 4.1 x 2.2 x 1.55 in 3.75 x 6.06 x 1.75 in 6.8 x 8.25 x 3 in 4.1 x 2.2 x 1.55 in 4.75 x 0.94 x 2.63 in
Size 1-Pack 1 Pack Pack of 1 1 Pack 4.9*2.8*1.3 inch N/A

Product description

Style:With Display

Carbon monoxide and natural gas leaks are a silent, invisible threat to you and your family. This 2-in1 Carbon Monoxide & Natural Gas Alarm protects your home with a dual sensing alarm and Smart Alarm technology that reduces the occurrence of nuisance alarms. The alarm is compact and easily installed by simply plugging into an outlet, with a 9 volt battery providing backup in the event of a power outage. A digital display screen and three color LED array provide quick updates on carbon monoxide and gas levels. USI (Universal Security Instruments, Inc.) makes the most innovative home protection solutions available today. Saving lives is what we do for a living.


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May 11, 2013
Style: With Display|Verified Purchase
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September 26, 2013
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August 14, 2016
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December 19, 2015
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March 8, 2016
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January 22, 2014
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