outline: in order to improve the accuracy of water meter, realize a high accurate measure when water leaks and prevent water waste by leaking and dropping, our company developed the new contactless ic card anti-leaking water meter and create a new idea on water meter production field, that is, to measure the water using amount even if there only drops or leaks from taps. the start rate of flow of our new contactless ic card anti-leaking water meter is less than 2l/h, which is absolutely meet the demand of national standard of grade b water meter and higher than the standard. not only the new model water meter can prevent the phenomenon that common water meter can not measure the leaked and dropped water from taps, but also resolved many problems, such as serious water waste. it is really a fair and valid way to measure water using amount. integrated model, one household is assembled with one meter and one ic card, to use water only by ic card. after the data in the ic card is transmitted to the water meter, the meter will open its valve and begin water supply, after the money is used up, it will automatically cut off water supply and you must buy water again to resume water use. product feature: 1. adopted contactless ic card patent technology, which can transmit wireless data outside water meter, so it has special functions of waterproof, damp-proof and anti-attack; 2. adopted no energy consumption technology which can ensure the inside accessory batteries to be used for more than 10 years 3. water meter, hot water meter and purified water meter all adopt unique technology of electric ball valve, which can greatly raise its performance 4. its inside circuit is sealed with epoxide resin; so it can work normally in water. 5. the start rate of flow is less than 2l/h 6. anti-attack of external current and magnetic. it will close valve automatically when is attacked by external current and magnetic.