NELOW Ver 2 is an intelligent leak detection system that uses a high-precision acoustic mobile IoT sensor to collect leakage data from water pipes worldwide and transmit them to a cloud server. The system also detects leakage by analyzing pipeline water pressure data via remote IoT sensors. Experts usually carry out the water pipe leakage detection using the acoustic device, making the process time-consuming and costly. However, NELOW_ver2's various sensors and AI-based analysis software enable non-experts to detect water leaks like an expert.