The 800 Duo Air Pak features two indepen- dent arcs with up to 400 amps each. The 33% increase in rated output for this model equals 800 amps of weld power and 27,000 watts of generator power. The machine is equipped with a heavy-duty low-speed Deutz TD2.9 L4 industrial diesel engine and is equipped with 65.7 hp. The electronic engine display shows fuel level, engine hours, coolant temperature, oil pressure, battery volts and engine rpm.