Range of flow: (5~55)L/min Max. tolerance: 0.3% Min. measured volume: 5L Noise: =80dB(A) Inlet vacuity: =54kPa Scope of unit price: 0~99.99$/Liter Range of single counting: Volume/Amount: 0~9999.99Liter Range of accumulative counting: Volume/Amount: 0~999999.99Liter Power supply: AC220V/380V 60HZ Rated power: 750W Ambient temp: -40ºC ~+55ºC Relative humidity: 30%~90%