SubSurface Leak Detection LD-8 Leak Survey Tool

SubSurface LD-8 Leak Survey Tool

Purpose built for fast and accurate water leak surveying at hydrants, meters, and valves.

The LD-8 is engineered for leak detection professionals, municipal water utility crews, survey teams, and infrastructure operators who need a lightweight, sensitive acoustic instrument for routine leak surveys across diverse water distribution systems.

Instrument Configuration and Durability

The LD-8 comprises a compact amplifier with a simple push button on/off switch, volume control, and a sturdy three position sensitivity range selector. A two digit loudness display simplifies comparison of leak intensity between adjacent access points. The preset notch filters suppress interference from transformer hum and power lines, enhancing signal clarity. A durable, lightweight ABS carrying case (about 10 pounds loaded) keeps the unit and accessories field ready.

Detection Method and Target Response

This rod based acoustic listening device uses a piezoelectric sensor paired with a 55 dB amplifier spanning 100 to 2,000 Hz frequency range. As the contact rod touches hydrants, valves, or meters, leak generated sounds are amplified and audibly broadcast through stereo headphones. Simultaneously, the two digit display exhibits relative loudness, aiding objective comparison when human perception is insufficient.

Field Use and Accessories

LD-8 kits include:

• A short 4 inch contact rod with anti slip tip for hydrant use
  
  
• A four section contact rod (total approximate length 52 inches) for below grade meters and valves, extendable with optional rods
  
  
• Comfortable stereo over ear headphones with soft coverings for extended listening sessions
  
  
• Custom fit ABS case for secure transport and organization
  
  

Operators can swiftly move between access points, leveraging both audio feedback and numeric readings to prioritize areas for deeper leak pinpointing.

Power, Size, and Ruggedness

• Power Source: Two AA batteries (alkaline or rechargeable)
  
  
• Battery Life: Minimum of 24 hours continuous use at room temperature
  
  
• Device Weight: Approximately 10.6 ounces (amplifier with batteries)
  
  
• Case Loaded Weight: Approximately 10 pounds
  
  
• Operating Temperature Range: 25°F to 130°F (–4°C to 54°C)
  
  
• Construction: Rugged ABS housing with field durable internal components
  
  

Why Field Operators Choose the LD-8

Professionals value the LD-8 for its simplicity, portability, and objective feedback features. The combination of robust audio sensitivity, numeric loudness display, and reliable signal filtering enables efficient detection of potential leaks even in noisy or electrically active environments. The kit’s compact design and long battery life support long shifts and varied terrains. Its five year warranty underscores SubSurface’s commitment to dependable field tools.

Contact Green Equipment Company to request pricing or arrange a demonstration of the LD-8.