Designed with the professional contractor in mind, this compact generator features a super heavy-duty tubular frame, commercial-grade engine, GFCI duplex outlet, 120/240 V outlet with selector switch and thermo-magnetic circuit breaker to protect equipment. Looking for home standby power? This unit is also a smart choice for the demanding home consumer. Total harmonic distortion (THD) is less than or equal to 6%, so you can even power your sensitive electronics.