Ozone generator,Sterilization of fruit and vegetable,ozone machineWater treatment equipment,Air sterilizer,Air purifier,spa ozon Timer with 24h circulation. Specifications: Electrical:220V,50Hz-110V 60 Hz Timing scope:1 min-24 hrs circulatoryDimension (LxWxH):5.1" x 2.1" x 1.5" (130x54x38 mm)Net Weight:-lb (kg) Features:LCD screen Microcomputer chip control Benefits: Application: