Introduction: STS prepaid water meter is an intelligent water meter system based on standard transmission protocol, which allows users to pay before using water water resources. The system usually consists of a water meter, a user interface unit (such as a keyboard or display), and a backend management system. Users activate the water use function of the water meter by purchasing prepaid water and entering the recharge code obtained into the water meter. The STS protocol ensures the security and reliability of data transmission, and the user's water consumption is accurately measured and controlled within the recharge amount. Such water meters are often used in public utilities to reduce the problem of arrears in water bills and ensure the reasonable allocation and management of water resources.
Application scenario: Usually used in urban water supply systems, Ensure accurate collection of water charges, Improve the management efficiency of water supply systems.
Component: STS prepaid water meter, CIU, water sales management platform. 
Work process:
- - Managers set user account information in software;
- - Users recharge at the water vending office;
- - To provide operator meter ID number (ID number printed on the water meter);
- - Tell the operator how much you want to buy and prepay;
- - On the receipt, you can get a printed TOKEN "20 (Digits)";
- - Input 20 digits TOKEN into the CIU,then you can continue use the water.
