The MNKV-NB valve-controlled water meter is an IoT-enabled remote-transmission wet-type cold water meter based on NB-IoT technology. This water meter is capable of measuring the volume of water flowing through a fully enclosed pipeline and transmitting the data to a system platform via the IoT. The system platform features remote control functionality for valve opening and closing. The water meter offers high measurement accuracy, with a multiplier ratio of up to R160H. Its module sampling counting boasts high precision, with a sampling pulse value of 10 1/lmp, ensuring reliable performance. Multiple options are available for data storage frequency and upload intervals. The product's NB remote transmission technology supports the three major telecom platforms: China Telecom, China Mobile, and China Unicom. The terminal data of the product can be interfaced with various platform systems. Therefore, this product exhibits a high degree of flexibility in terms of counting accuracy, data storage frequency, data upload intervals, telecom operator selection, and system platform compatibility, meeting diverse customer needs. It is suitable for use in both residential and enterprise settings.