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

3.6 out of 5 stars 263 customer reviews
| 34 answered questions

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  • 2-in-1 alarm that provides double the protection with a single installation to protect against carbon monoxide and natural gas
  • 120-volt AC alarm with backup battery is suitable for houses, apartments and mobile homes
  • Digital display screen provides carbon monoxide PPM (parts per million) levels and displays "GAS" during an occurrence
  • Compact plug-in design covers only (1) outlet for a fast and easy installation with no wiring required
  • Comes with a 5 year limited warranty
8 new from $20.99


From the manufacturer

Product description

Style:With Display

The Universal Security Instruments Electric MCND401B Plug-In Carbon Monoxide and Natural Gas Smart Alarm is a 2-in-1 device that provides double the protection with a single installation. This dual-sensing alarm protects against two deadly household threats: carbon monoxide and natural gas (or methane). Perfect for new or replacement installations, the 120-volt AC alarm is suitable for houses, apartments and mobile homes. The compact plug-in design covers only (1) outlet for a fast and easy installation with no wiring required. This alarm features microprocessor intelligence to eliminate nuisance alarms, a single silence/test button to quiet a non-hazardous alarm and an end-of-service life warning that sounds when it's time to replace the battery (approximately 7 years from activation). The digital display screen provides carbon monoxide PPM (parts per million) levels and displays "GAS" during an occurrence. Peak CO levels are recorded with the memory button and (3) LED colors display the status of the alarm, power, CO and gas in your home. The 9-volt alkaline battery (included) continues protection in the event of a power outage. This alarm is ETL listed to UL Standard 2034 & UL1484, California State Fire Marshal approved and Federal Housing Authority (FHA) approved to exceed industry standards. For maximum protection, install an alarm inside every bedroom, outside every sleeping area and on all levels of the dwelling. The Universal Security Instruments Electric MCND401B Plug-In Carbon Monoxide and Natural Gas Smart Alarm comes with a 5 year limited warranty. Universal Security Instruments is 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 technologies with the mission of always working to keep families protected. Visit www.amazon.com/universalsecurityinstruments for more information on Universal Security Instruments and our extensive line of products.


Product information

Style:With Display

Technical Details

Technical Specification

Warranty [pdf ]

Additional Information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

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Customer Reviews

Top Customer Reviews

on May 11, 2013
Style: With Display|Verified Purchase
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on October 10, 2013
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on September 26, 2013
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on November 8, 2013
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on January 22, 2014
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on August 27, 2013
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on December 19, 2015
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on October 20, 2013
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