The USI/NG/10YR Natural Gas Alarm offers powerful protection against natural gas leaks, delivering fast, accurate detection and a decade of worry-free operation. Featuring a built-in, maintenance-free 10-year sealed battery, this alarm ensures continuous monitoring even during power outages—no battery replacements required. Ideal for residential use, this wall-mounted alarm detects methane (CH₄) and alerts you with a loud 85 dB horn and a bright, easy-to-see visual indicator. Designed for simple use and reliable performance, it includes an Auto Silence feature to temporarily quiet non-hazardous alarms and a Test/Reset button for quick functionality checks. End-of-service life and fault indicators let you know when it's time for a replacement. The compact, low-profile design blends into modern spaces while meeting UL 1484 standards for natural gas detection. Protect your family and bring peace of mind to your home with the trusted technology of USI.