Hunan Puqi Geologic Exploration Equipment Institute is based in China and lists products on Global Trade Plaza, including the Water Pipe Leak Detector. This device is part of the PQWT-CL300 series and is designed for detecting underground pipe leaks using digital signal processing and acoustic methods. It features a 7-inch touch screen, a frequency range of 50-2500Hz, and a built-in sensor with a rubber ring seal for enhanced noise capture.