... engine. 3)Low oil alarm protection 4)Large fuel tank Petrol generator set 50hz/ 2.5kva, 60hz/3.0kvaOHV 7.0hp 4 ... incorrect man-made operation) Certification:CE,ISO9001-2000,EPA,GS generator ,gasoline generator ,power generator ,gas generator,electric generator, generator set. portable gasoline generator, home used generator,petrol generator,portable generator.