USI Electric MCN400B M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup

$ 42.99
Availability: Out Of Stock

Alarm Type Carbon Monoxide & Gas
Power Source Plug In
Interconnects No
Battery 9V

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The USI Electric MCND401B M Series Plug-In Carbon Monoxide and Natural Gas Alarm is for those who understand that carbon monoxide and natural gas leaks are a silent, invisible threats that you need to protect your home against. This two-in-one alarm protects your home with a dual-sensing alarm and Smart Alarm technology that reduces the occurrence of nuisance alarms. The alarm is also compact and easily installed by simply plugging into an outlet, along 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. This comes with a limited warranty. USI Electric is a subsidiary of Universal Security Instruments Inc., a U.S.-based manufacturer of high-quality, easy-to-install home safety products. Founded in 1969, Universal Security Instruments has over 40 years of heritage in providing home safety products for families. With state-of-the-art manufacturing facilities, Universal Security Instruments continues to launch revolutionary new products and innovative technologies with the mission of always working to keep families protected.


  • Reliable plug-in carbon monoxide and natural gas alarm
  • Microprocessor intelligence helps eliminate nuisance alarms caused by non-hazardous sources
  • Compact design covers only one outlet — No wiring required
  • Designed with end-of-service life warning signals and a digital display screen to provide CO parts per million levels and displays "GAS"
  • Comes with a limited warranty

Don't know what type of carbon monoxide alarm is right for your home? Check out our guide on how to choose the right smoke detector for your home