1, Digital water meter, Class C 2, No rust or pollution 3, ... , ISO 9001,14001,CE General IntroductionContactless IC Card Digital Water Meter is suitable for measuring the flow of potable water ... In case of prepaid water volume used up, water meter will close valve automatically to stop water supply and ... steelCompany ShowcaseProduction EquipmentThe Workshop Contactless IC Card Digital Water Meter