... test equipment 4)Low operation cost specification of natural gas generator: Gas Generator - 50 HZ AT 1500/1000 RPMENGINE Alternator ... control box with Auto controller,ECU and spark system, Gas and Air Mixer,Radiator Fan,Fire protection system,Air filter ... control panel are Meters with Voltmeter,Ammeter,Frequency list,Water thermometer,Oil pressure gauge,Hour meter.2. Control partsStart/stop ...