1. The user IC card is used and meter works after the prepayment
2. One card for one or multiple meter
3. Two alarm grade to remind purchasing water
4. It has the functions of failure checkup.
5. Two billing mode
6. Single water price prepaid mode:
The usage quantity is billed bases on single water price and the billing
system set the price rate according to the water consumption situation.
Ladder water price prepaid mode: The monthly water consumption quantity
is set as multiple. ladders by billing system and each ladder has its
price. When firstly purchasing the water, the vending system will bill
the water according to the preset value, and then secondly purchasing,
the system will bill the water bases on your actual water consumption
situation of last time. The formula is:
total price = first ladder price x
first ladder water consumption quantity + second ladder price x second
ladder consumption quantity + … and so on