LD-12 Water Leak Detector

LD-12 Action.jpg (15879 bytes)

The new LD-12 "Professional's Plus" Water Leak Detector offers several new features not available in our popular LD-10. The LD-12's amplification and audio clarity are even better, and the LD-12's large meter display of the leak sound intensity is easily visible in all outdoor lighting, from bright sunlight to total darkness.
The LD-12 includes a base plate for "ground miking" on city streets or concrete slabs and both a magnet base and a contact rod for water leak "surveying" at hydrants, valves, and meters.




  • Large meter display (with backlight) of sound loudness, allowing the user to pinpoint the exact leak location.

  • Light weight amplifier, weighing only 31 ounces, with a padded carrying case and a strap.

  • Six selectable filters, split into three “low side” filters (100Hz, 200Hz, or 400Hz) and three “high side” filters (600Hz, 800Hz, or 1200Hz).

  • “Limitter” switch which cuts off all loud noises greater than 110dB. If you drop the sensor, you won¹t hurt your hearing.

  • “Filter-Thru” switch, which turns OFF all of the amp’s filters, allowing the user to hear all sounds from 50Hz to 15,000Hz.

  • High-sensitivity ground microphone and low “electronic noise” amplifier combine to offer the very best quality sound for leak detection.

  • Three accessories for attachment to the sensor:

    • Ground plate for pinpointing on streets/slabs

    • Magnet base for surveying at hydrants/valves

    • Contact rod for surveying at meters/fittings

  • 5 Year Limited Warranty

LD-12 accessories photo

Standard Equipment:

  • Amplifier w/ Meter Display & Filter Controls (1)
  • Ground Microphone & Handswitch (2)
  • Aviation-Grade Stereo Headphones (3)
  • Heavy-Duty ABS Plastic Carrying Case (4)

Standard Accessories:

  • Magnet Base (5)
  • 3-Section Contact Rod (6)
  • Nut Driver - to remove base (7)
  • Instruction Manual



QTY P83105

LD-12 Water Leak Locator

QTY P83106

LD-12 Water Leak Locator with 6' Cable

QTY P83107

LD-12 with Case and 10' Cable
Input Impedance 50k ohms
Output Impedance 15 ohms
Amplification 62 dB +/- 3dB
Frequency Range 100Hz to 1200Hz (13 dB) with Filter-Thru OFF
15Hz to 30,000Hz (13 dB) with Filter-Thru ON
Power 6 AA dry cell batteries
Power Consumption 70 mA or less with backlight ON
35 mA or less with backlight OFF
Battery Life 28 hrs with backlight OFF (alkaline cells); 14 hr with backlight ON (alkaline cells)
Weight 31 ounces (885 g)
Size 6.7" x 2.8" x 4.1" (170mm x 70mm x 103mm)
Weight (full) 15 lb. (6.81 Kg)
Size 18.5" x 14.6" x 7.5" (470mm x 371mm x 190mm)