This unit features a 4-cycle, single cylinder 1B30 industrial diesel engine, electric start (battery not included), GFCI duplex receptacle, 120V/20Amp twistlock AC receptacle, 120V/30Amp twistlock AC receptacle, AC circuit breakers, full power switch, voltmeter, hourmeter, 12V DC battery charging, industrial air cleaner, engine warning indicator lights (engine running, battery charging, oil lights), large muffler with spark arrestor (US Forestry-approved), fuel gauge, dual capacitor voltage regulation allowing output as high as 150% over rated power for up to 20 seconds, metal fuel shut-off valve, large fuel filters, large metal fuel tank, battery rack and cables, and convenient oil check and large oil fill hole. This model weighs 192 lbs. and has an operational volume of 78dB