Does the card type water meter support only "one card one meter"?
Home card, card activation table and card are only brush off the table, so the owners do not have to worry about the wrong card brush
Another way is that your home water, electricity, gas and other watches are produced by the same manufacturer, then when you open an account, your home card can recharge multiple tables. That is, one card and many tables. Similarly, the second is only the first recharge, recharge table.
Plug type water meter, gas meter general account is a card table, each card in the account after the account will have the relevant information, the first time into your home water meter and gas meter or table, table second recognition can only recharge and the first card, and the other is not table card. So you don't have to worry about buying water at other homes by mistake.