... for extra safety 10.Optional Choice:Soundproof, ATS (automatic transfer switch), AMF panel, Trailer, Parallel system by your extra choose. Technical parameters ... Engine; (2)Engga Alternator; (3) Control PanelControl Panel The control panel is GU620A control panel, with the display of voltage,current, frequency, ... with low oil pressure,high water temperature,over speed,over load protection function.