Amid the global wave of water resource management upgrades, the Internet of Things prepaid water meters independently developed by Zhuozheng Electronics are providing smart water-saving solutions for 20 countries and regions. Our NB-IoT/LoRa water meters, with their three core advantages of precise measurement, intelligent prepayment, and cloud platform management, are widely applied in multiple fields such as urban residential water supply renovation, preventing illegal water use in campus public buildings, intelligent pre-allocation of agricultural irrigation water volume, and departmental cost-sharing mechanisms for water use in industrial parks.