The Universal Security Instruments Carbon Monoxide & Natural Gas Alarm delivers dual protection against two of the most common home safety threats: CO gas and natural gas leaks. Built with advanced detection technology, this alarm quickly identifies dangerous levels of carbon monoxide or methane (CH₄) and provides loud, unmistakable alerts, and clear visual LED indicators for real-time monitoring. A sealed 10-year battery ensures continuous, maintenance-free operation with no replacements required, even during power outages. Designed for simple installation and reliable performance, it features an Auto Silence function, Test/Reset button, and end-of-life indicators for peace of mind. Slim and modern, it easily blends into residential spaces while meeting UL standards for both CO and natural gas detection. Trusted USI reliability ensures your home is protected day and night with one smart, compact device.