The so-called tiered water pricing refers to dividing water prices into different tiers and implementing different prices within different quota ranges. If the water usage is within the fundamental quota, the benchmark water price will be used. If the water usage exceeds the fundamental quota, the excess will be charged according to another tiered water price standard. The tiered water pricing can be divided into two types: increasing tiered and decreasing tiered water pricing. The tiered water price refers to the higher the water price as the amount of water used increases; The tiered water pricing is the opposite, with higher water usage resulting in lower water prices.

In China, the commonly referred to tiered water pricing refers to increasing the tiered water pricing to constrain user water usage and reduce water resource utilization. The tiered water price can be set up in multiple tiers, but generally three tiers are common.

Prepaid smart card tiered water price meterSuitable for charging different prices based on the user's (annual, quarterly, monthly) water consumption. Can set two boundary points for water volume and three types of charging water prices. When the monthly water usage of the user does not exceed the boundary point, water fees can be charged at normal water prices. When the usage exceeds the boundary point 1, water fees will be charged at a higher water price. When the monthly water usage exceeds the boundary point 2, water fees will be charged at a higher water price. Then, the user's water usage is reasonably constrained to achieve the intention of saving water and preventing water resource waste.

One household, one meter, one card, use water with the card, and record the water consumption in their respective cards. After the quantity in the table is used up, the meter will automatically close the valve and stop the water supply. Users need to purchase water again before they can open the valve again to supply water.