Leak Survey Instrument

The LD-15 Professional's Leak Survey Instrument offers the highest sensitivity and the best audio quality ever offered in an acoustic listening device.
Standard Items:
Amplifier with Meter Display and Filter Controls.
Padded Case and Standard Belt (40 inches)
High Sensitivity Sensor and Cable
Base Plate for Listening on Street Surfaces
Aviation-Grade Stereo Headphones
Heavy-Duty ABS Plastic Carrying Case
Features 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 at water meters with a Long Contact Rod (optional).
"Survey" for water leaks by listening at hydrants and valves with the sensor and magnet.
"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.
AMPLIFIER
Amplification: 56 dB
Filter Ranges: 1) High Range 30 Hz to 5000 Hz, 2) Low Range 30 Hz to 800 Hz, 3) Notch Filter 150 Hz, 180 Hz.
Power: 4 C dry cell batteries
Battery Life: 80 hours with alkaline batteries at 68 degrees F
Weight: 31 ounces (including 4 C batteries)
Size: 6.4in x 3.0in x 5.7in
(163mm x 76mm x 144mm)
SENSOR
Sensitivity: 10 V/g
Resonance Frequency: 950 Hz (±150 Hz)
Weather Protection: IP68 or equivalent (3 ft under water for 3 hours)
Cable Length: 9.75 ft
Associated Product:
- Water Leak Detector - LD12
- Digital Water Leak Detector - LD18
Correlator for Metal Pipe
Aquascope Leak Detector