series underground pipes water leak detector is high performance leak detection equipment, has powerful anti-jamming and data processing capabilities, you can make your work easier. WE HAVE DIFEERENTE MODELS Place of Origin: Hunan, China (Mainland) Brand Name: PQWT Model Number: PQWT-CL400 Product name: PQWT-CL400 Patented Pipeline Machine Water Leak Detector Frequency Power: Electronic Usage: Auto Testing Machine Range: 50-2500HZ Audio Amplifier Gain: Adjustable within the class of 100 Operation Mode: Spectral Analysis, Filter Analysis, Location Mode, Long-Term Mode LCD Size: 7-inch Touch Screen Live Recording: 8 Sections of Recording Sta