Professional Water Leak Detector for Underground Pipes Key benefits Detects leaks in buried water supply pipes at depths exceeding 3 meters, enabling fast localization of underground and inslab leaks. Helps plumbers, interior designers, builders, and water supply technicians identify leak points without destructive excavation. Accurate acoustic detection reduces time spent searching and supports targeted decisions. Highlights and functions Four frequency modes: selectable levels 1 to 4 with continuously adjustable frequency range from 200 Hz to 3000 Hz to match different soil and pipe conditions. Headphone monitoring: use supplied headphones for focused listening to pipeline noise and leak sounds, improving detection accuracy in the field. Sensitivity adjustment knob: three sensitivity bands , mid, and low; rotate clockwise to increase sensitivity and counterclockwise to reduce sensitivity for finer control over detection range. External network sensor and listening rod: the external sensor provides improved noise isolation in busy environments. The listening rod connects to the sensor and can be inserted into soft soil for better sound transmission from buried pipes. Performance and compatibility Designed primarily for locating water supply pipe leaks and groundwater pipeline noise sources in residential and outdoor settings. Effective for a range of pipe types commonly found in water distribution systems and for use in soft or compacted soils where acoustic transmission allows detection. Portable and field oriented for onsite troubleshooting and inspection work. Typical use scenarios Locate a leak under a backyard lawn or garden without extensive digging by inserting the listening rod into soft soil and tuning frequency and sensitivity. Identify the source of a noisy water line in a utility corridor or under a slab during renovation by wearing headphones and scanning with the external network sensor. Pinpoint leaks along residential or commercial supply lines during routine maintenance or after pressure loss events to guide targeted repairs. Operation tips Start at a lower frequency and lower sensitivity in noisy environments, then increase frequency and sensitivity as you zero in on the source. Use headphones for results; the external sensor helps shield from ambient noise. Insert the listening rod into soft soil when possible to improve acoustic contact and clarity. Who should use this Professional and trade users who need a reliable acoustic method to find underground water leaks, including plumbers, builders, interior designers involved in renovations, and water supply technicians.