Item Brochure

AMPLIFIERS
Input Impedance: 430k ohm +/- 1%
Output Impedance: 4-10 ohm
Amplification: 56 dB +/- 3%
Frequency Range: 100Hz to 1500Hz
Power: 2 AA dry cell batteries (1.5 V x 2)
Power Consumption: 20 mA Nominal (30-hour life)
Weight: 0.507 lb. (230 gm)
Size: 5.7” x 3” x 1.25”
(145mm x 30mm x 68mm)
HEADPHONES
Impedance: 20 ohms
ABS CARRYING CASE
Weight (full): 5.84 lbs (2.65 Kg)
Size: 14” x 10.5” x 6”
(356mm x 267mm x 152mm)
 Compact amplifier (with mute switch) fits inside the palm of the user’s
hand. Press the mute switch (on/off) to activate the leak sounds in the
headphones, and then release the mute switch when moving the sensor
(protects your hearing!).
 Designed for all of the water leak detection applications, including leak
surveys and leak pinpointing. Use the 3-point ground plate for pinpoint-
ing on streets and concrete slabs. Use the magnet base or the contact
rod for leak surveys at hydrants, valves, or meters.
 Extremely compact and lightweight. The entire LD-7 inside its heavy
duty carrying case measures only 14 inches x 10 inches x 6 inches,
small enough to be stored behind the seat inside the cab of the truck.
 5 High Frequency filters, 3 Low Frequency filters (plus Low filter OFF),
and 2 Notch filters (plus Notch filter OFF) to remove continuous interfer-
ing noises from A/C hum, motors, wind, etc.
 Hard ABS plastic custom carrying case included.
LD-7 WATER LEAK DETECTOR
SubSurface Instruments, Inc.
⎥
1230 Flightway Drive, De Pere, WI. 54115
toll free: 855.422.6346
⎥
Website: www.ssilocators.com
⎥
email: [e-mail]
KEY FEATURES
FEATURES
SPECIFICATIONS
1) Amplifier w/volume & mute switch
Sensor w/3 point ground plate
Magnet base
Stereo headphones
3 section contact rod
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Includes:
 ABS custom case
 Instruction manual