Pipehorn Water Leak Detector Model LD-18


Pipehorn Water Leak Detector Model LD-18

Remove intermittent sounds with digital noise reduction

  • Store and Graph leak sound levels
  • Digital Noise Reduction and multiple filters to reduce interference
  • Noise reducing headphones
  • USB connection and back light


  • Sensitivity & Amplification: 900 V/G or higher (at 400 Hz)
  • Low Filters: Off, 100 Hz, 200 Hz, 400 Hz
  • High Filters: 400 Hz, 600 Hz, 800 Hz, 1200 Hz, 2200 Hz
  • Notch Filters: Off, 50 Hz, 60 Hz
  • Sound Levels Saved: 250 max (by date and time)
  • Power (amplifier): 4 C alkaline batteries
  • Battery Life: 24 hours minimum
  • Weight (amplifier): 35 ounces

Standard Accessories

  1. Amplifier with LCD Display, Filter Controls, and USB connection
  2. Padded Case for Amplifier
  3. 40 in. Belt
  4. Ground Microphone and Handswitch
  5. Magnet Base w/ Nut Driver
  6. Heavy-Duty Plastic Carrying Case
  7. Aviation-Grade Stereo Headphones
  8. PC Software and USB Cable

Optional Accessory

  1. Sensor with Strong Magnet and 9.75 ft Cable


The LD-18 is a digital water leak detector equipped with a noise reduction system that significantly removes intermittent sounds such as footsteps, people talking, and passing vehicles. Other features include high and low filters, storage and graphing of sound levels, a USB connection and backlight. In addition to the 8 frequency filters there are 2 notch filters designed to remove continuous interferences such as A/C hum, motors, and wind. Sound levels can be logged on a computer for future use using the included software.


  • All-digital amplifier with automatic noise reduction of intermittent sounds.
  • Storage and graphing of sound levels at different locations on the pipe.
  • Bar graph and numeric display of sound loudness.
  • 5 High Frequency Filters, 3 Low Frequency Filters, and 2 Notch Filters to remove continuous interfering noises from A/C hum, motors, wind, etc.

Pipehorn Water Leak Detector LD-18