Subsurface Instruments LD-7 Water Leak Detector

Pinpoint pipeline leaks with the LD-7 Leak Detector Save time, money, and hours of unnecessary excavation with the LD-7 Leak Detector. Subsurface Instruments' most compact leak detector, this acoustic listening device consists of a microphone and an amplifier. With the microphone sensor placed on the ground, the amplifier transmits any leak sounds into the headphones worn by the operator. Leak locations are identified by moving the microphone along the ground surface above the pipeline.  The louder the noise, the closer the leak location. In the Box Amplifier with volume adjuster and mute switch Microphone Sensor with 3-point ground plate Stereo Headphones Magnetic base for the microphone 3 section contact rod ABS Plastic carrying case Applications Water leak identification Leak pinpointing Slab leak detection   Technical Specifications Amplifier Size 5.7" x 1.25" x 3" (14.5 cm x 3.3 cm x 6.8 cm) Amplifier Weight 8.0 lb. (3.6 kg) Amplifier Input Power Two (2) AA dry cell batteries (1.5 V x 2) Amplifier Battery Life 30 Hours Amplifier Frequency Range 100Hz to 1500Hz Amplifier Power Consumption 20 mA Nominal (30-hour life) Amplifier Input Impedance 430k ohm ±/- 1% Amplifier Output Impedance 4-10 ohm Amplifier Amplification 56 dB±/- 3% Amplifier Warranty 5 Years ABS Carrying Case Size 14" x 10.5" x 6" (35.6 cm x 26.7 cm x 15.2 cm) ABS Carrying Case Weight 5.84 lb. (2.65 Kg) LD-7 Water Leak Detector Data Sheet