Universal Security Instruments Plug-In 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm with Battery Backup (MCND401B)
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The Universal Security Instruments Electric MCND401 Plug-In Carbon Monoxide and Natural Gas Smart Alarm is a 2-in-1 device that provides double the
![](https://i.ytimg.com/vi/0YVgt5P-6s8/maxresdefault.jpg)
Let's get this Carbon Monoxide and Natural Gas Detector open
This compact plug-in alarm is perfect for new or replacement installations. Dual sensing alarm - provides protection against two deadly household threats: Carbon Monoxide and Natural Gas. The display shows the level of carbon monoxide detected. This alarm is suitable for installation in houses, apartments and mobile homes.
![](https://www.wholesalehome.com/cdn/shop/products/51ZzmK9xToL.jpg?v=1625081748)
Universal Security Instruments Plug-In 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm
![](https://www.universalsecurity.com/images/usi-smoke-alarms-related.jpg)
Universal Security Instruments MCND401 Plug-In 2-in-1 CO and Natural Gas Smart Alarm with Battery Backup
Offering single installation and double protection this compact plug-in alarm is perfect for new or replacement installations. The dual sensing alarm provides protection against 2 deadly household threats carbon monoxide and natural gas with a display screen that shows the level of carbon monoxide detected. This alarm is suitable for installation in houses apartments and mobile homes.
![](https://images.thdstatic.com/productImages/5b416c86-7a93-47a8-8b1b-e52cbf0edef0/svn/universal-security-instruments-carbon-monoxide-detectors-mcnd401b-44_600.jpg)
USI Carbon Monoxide & Natural Gas Plug in Sensor MCND401B
![](https://www.universalsecurity.com/images/products/MIC3510SB/MIC3510SB.jpg)
Carbon Monoxide Alarms & Multi-Gas Detectors by USI
![](https://www.greatbrandsoutlet.com/store/images/products/large_images/mic3510sb-hallway-10-year-batter-smoke-fire-and-carbon-monoxide-smart-alarm-1.jpg)
6 Pack Bundle of USI Hallway 3-in-1 Smoke, Fire and CO 10-Year Smart Alarm
![](https://i.ebayimg.com/images/g/uzQAAOSwDgdlRk5z/s-l1200.jpg)
Universal Security Instruments PlugIn Carbon Monoxide Natural Gas Alarm MCND401B
![](https://i5.walmartimages.com/asr/db8edd6f-f3b4-488e-a943-3c9f87161594.16e118c8392f9bafa0d4a39bc3b54bbc.jpeg)
Universal Security Instruments MCN400B M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup
![](https://www.universalsecuritystore.com/store/images/products/large_images/mds300b-battery-operated-iophic-smoke-and-fire-alarm.jpg)
1Bundle of 2 USI Battery-Operated Universal Smoke Sensing Smoke Alarm (MDS300B)
![](https://www.universalsecurity.com/images/products/MCND401/MCND401.jpg)
Universal Security Instruments MCND401 Plug-In 2-in-1 CO and Natural Gas Smart Alarm with Battery Backup
This combination plug-in alarm is designed to detect carbon monoxide and natural gas that reaches the sensor. Quick activation pull tab. 7 year End-of-service life warning. Single silence/test button. Memory button. 4 LED colors display status of alarm power service. 9 volt battery included.
![](https://www.universalsecuritystore.com/store/images/products/large_images/mcn400b-plug-in-2-in-1-carbon-monoxide-and-natural-gas-smart-alarm-1.jpg)
Carbon Monoxide and Natural Gas Detector Mcn400b
![](https://www.universalsecurity.com/images/products/AMIC3511SB/AMIC3511SB.jpg)
Carbon Monoxide Alarms & Multi-Gas Detectors by USI
This compact plug-in alarm is perfect for new or replacement installations. Dual sensing alarm - provides protection against two deadly household threats: Carbon Monoxide and Natural Gas. The display shows the level of carbon monoxide detected. This alarm is suitable for installation in houses, apartments and mobile homes.
![](https://c1.neweggimages.com/ProductImage/A5D5D201108P0QH2.jpg)
Universal Security Instruments Plug-In 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm
This combination plug-in alarm is designed to detect carbon monoxide and natural gas that reaches the sensor. Quick activation pull tab. 7 year End-of-service life warning. Single silence/test button. Memory button. 4 LED colors display status of alarm power service. 9 volt battery included.
![](https://www.universalsecuritystore.com/store/images/products/large_images/mcn400b-plug-in-2-in-1-carbon-monoxide-and-natural-gas-smart-alarm-3.jpg)
Carbon Monoxide and Natural Gas Detector Mcn400b
12 Best Carbon Monoxide Detectors in 2024 - Popular Mechanics
How Long Do Smoke and Carbon Monoxide Detectors Last?, Business and Home Security Solutions
Carbon Monoxide Poisoning/Safety & Prevention - PSE&G
The Difference Between Natural Gas and Carbon Monoxide Detectors - Denova Detect
First Alert CO400 Basic Battery Operated Carbon Monoxide Alarm
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