Inverter generators provide safe, quiet and reliable power with carbon monoxide detection and automatic shutdown. Reduced size, weight, noise and fuel consumption · Produces commercial quality AC power for sensitive electronic equipment. Total harmonic distortion (THD) less than 3% · Copper windings. Easy to remove access panels for spark plug, oil and air cleaner · Outlet covers. Equipped with CO detector with automatic shutdown · DC plug · USB ports for electronics · Idle control · Gas ventilation cap · Main circuit breaker · USDA/USFS-approved spark arrestors. Note: All gasoline models sold in California are required to have a CARB compliant engine and fuel system. Consult factory. Noise level tested at seven meters (75% load). Rating represents minimum noise level rating.