Plug-In Smoke, CO & Gas Alarms

Universal Security Instruments MCND401 Plug-In 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm with Battery Backup

Carbon Monoxide Alarms

Universal Security Instruments MCND401 Plug-In 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm with Battery Backup

Universal Security Instruments MCN400 Plug-In 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm with Battery Backup

Carbon Monoxide Alarms

Universal Security Instruments MCN400 Plug-In 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm with Battery Backup

About USI

USI (Universal Security Instruments, Inc.) makes the most innovative home protection solutions available today. Since our founding in 1969, we’ve become one of the largest manufacturers of smoke and carbon monoxide alarms in the world. We hold 11 patents on detection technologies, based on our proprietary research...

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