Guardian 04389 7,000 Watt Emergency Automatic Home Standby Generator (Discontinued by Manufacturer) Automatic transfer switch with built-in emergency load center included System supplies back up power within 30 seconds, so you won't have to lift a finger when utility power fails All components are fully factory pre-wired to make installation easier than ever & save you time and money Powerful OHVI (overhead valve industrial) engine with pressurized lubrication and oil filter for long life Non-CARB Compliant/Not For Sale In California