• Tri-axial geophone probe for full waveform measurements
  • Built in fluxgate compass and servo motor for maintaining geophone alignment
  • Electrically actuated bow spring clamp for excellent borehole wall coupling
  • Up to four boreholes can be measured simultaneously
  • Various seismic sources available: beam, downhole, underwater, AWD, explosive
  • Advanced data analysis software
  • Can be performed within sonic override casing


  • 2 - 6 in. borehole / casing diameters
  • Company experience up to 350 m depth, with good signal


  • Rapidly deployed and highly portable
  • Obtain Vs and Vp parameters where SCPTu is not possible
  • Utilize existing monitoring wells
  • Utilize drill casing
  • Fast data acquisition
  • Deployed on land and over water


  • Downhole / crosshole Vs and Vp profiles for seismic site characterization and design
  • Liquefaction analysis
  • Vs30 determination
  • Ground truth of geophysical survey
  • Modulus determination
  • Dynamic soil properties