Pipehorn Water Leak Detector Model LD-15


Pipehorn Water Leak Detector Model LD-15

An advanced clean amplifier with simple filtering for water leak surveying

  • Simple preset filter selections
  • Clean, clear, quiet amplification of the leak sound
  • Large backlit meter to help target the leak
  • Noise reducing headphones


  • Frequency Ranges:
  • High Range: 30 Hz to 5000 Hz
  • Low Range: 30 Hz to 800 Hz
  • Notch Filter: 150 Hz, 180 Hz
  • Power (amplifier): 4 “C” cell batteries
  • Battery Life: 80 hours w/ alkaline batteries
  • Weight (amplifier): 31 ounces

Standard Accessories

  1. Padded Case and Standard Belt (40 inches)
  2. Amplifier w/ Meter Display and Filter Controls
  3. Base Plate for Listening on Street Surfaces
  4. Aviation-Grade Stereo Headphones
  5. Heavy-Duty ABS Plastic Carrying Case
  6. High Sensitivity Sensor and Cable (9.75 ft)

Optional Accessories

  1. 40 inch Long Contact Rod
  2. 60 inch Long Contact Rod
  3. Large Size Belt (50 inches)
  4. Extra Large Size Belt (60 inches)


The LD-15 Professional’s Leak Survey Instrument is primarily designed for water leak “surveys”. Use this to quickly identify problem areas (by listening at hydrants, valves, and meters) and/or isolate a leak between points of contact along the pipe.


  • High sensitivity sensor with Neodymium magnet (extra strong). Sensor and cable connection completely sealed and water-proof (submersible).
  • Amplifier with superior audio quality (very low distortion and superior signal-to-noise ratio) and large meter display. Press the Mute Switch to hear sounds when you are ready.
  • “Survey” for water leaks by listening at hydrants and valves with the sensor and magnet. Survey at water meters with the optional Long Contact Rod.
  • “Pinpoint” water leaks in pipes under asphalt or concrete with the base plate attached to the sensor and magnet.
  • Use the High filter range for water leak surveying. Use the Low filter range for water leak pinpointing. High frequency leak sounds travel on the pipes, but only low frequencies pass through the soil.

Pipehorn Water Leak Detector LD-15