X4 PIPE SONAR SYSTEM X4 Pipeline Inspection System/Equipment is mainly used for the detection of water-carrying pipes (full water or above 2/3 of the water level), inspection wells, or underground cavities. It automatically analyzes and extracts the inner wall contour, establishes a three-dimensional model, and performs the quantitative analysis. X4 Sonar Pipe Inspection Equipment/System Main Parts If you want to buy smart drainage system, please leave us a message.