ULTRA-TRAC® APL finds unmarked underground pipe fast and accurately!


ULTRA-TRAC® APL is the perfect choice when it is necessary to accurately locate unmarked, underground piping systems. Natural gas, water and sewer laterals are easily traced using state-of-the-art acoustic technology. The APL will significantly reduce the number of unlocatable and identify potential cross bore risk locations when using HDD technologies

Perfect for locating plastic pipe!

ULTRA-TRAC® APL locates the voids in the ground created by a pipe through the science of impedance mismatch. The instrument sends a series of “pings” and then monitors the acoustic wave pattern, timing and frequency of the return signature. This process is referred to as a “Slice”.

The operator will repeat the ‘slice’ recording process a minimum of three times, across a preset distance. This is a “Scan” The APL will determine if a void is present. A locate comprises of several scans.

  • Easy to use
  • Easy to interpret
  • Locates systems in minutes
  • No system access required
  • Operates in soil, grass, concrete, gravel and asphalt ground covering
  • Large Graphic Display
  • Rugged Construction
  • 25 Hour Recharge Battery Life
  • Compact Storage
  • Locate Gas Piping
  • Locate Gathering Lines
  • Locate Sewer Laterals
  • Locate Water Lines
  • Locate Drainage Lines
  • Locate Electrical Conduit
  • Locate Fiber Optic Conduit
  • Find piping systems where there is no tracer wire (or broken wire)
  • Natural Gas Utilties
  • Locate Contractors
  • Municipal Water/Sewer
  • Oil Companies
  • General Contractors
  • Telecom Companies
  • HDD Contractors
  • Excavation Contractors
  • Industrial Maintenance
  • Plastic Pipe
  • Metallic Pipe
  • Concrete Pipe
  • Cast Iron
  • Ductile Iron
  • Clay Tile

Can find buried water lines with no tracer wire!

Sensit APL Acoustic Pipe Locator - find buried water lines with no tracer wire

SENSIT Technologies
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