Klein System 4000

Klein’s System 4000 Side Scan Sonar is purpose built for Search and Recovery operations. The system is easy to use, portable and designed to meet the demanding requirements search and recovery water surveys.

Condensing our 50 years of design knowledge into a system that combines Klein’s iconic imaging with unprecedented towing options and range performance for unsurpassed search and survey efficiency.

Klein Blue Technology™ represents innovations in transducer, signal conditioning and processing design producing unmatched image quality and range performance. These enhancements also allow for motion tolerant performance in heavy sea states where vessel motion impacts tow fish stability. Klein Blue design optimization achieves a new level of acoustic performance for our workhorse Klein 4000 System.

Key Features

  • Dual Frequency, 100/400 kHz, Simultaneous Operation
  • Advanced Variable Rate Bandwidth Telemetry (AVRBT)
  • Depth Rated to 2000 m
  • Hydrodynamic Stainless Steel Tow Fish with: Heading, Pitch and Roll Sensors
  • Pressure Sensor


  • Wide Area Search and Recovery
  • Cable & Pipeline Surveys
  • Hydrographic Surveys
  • Archaeological Surveys
  • BOEM/Mining Surveys
  • Treasure/Wreck Hunting
  • Hull Surveys
  • Port and Harbor Security
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