Caterpillar - Cat

ST400C Sonic Tracer

The weatherproof ST400C Sonic Tracer is an ultrasonic sensor that can be used to reference string line, curb and gutter or the previous pass as a grade control reference.

  • Used as part of an automatic grade control system
  • Features an integrated grade display unit and selectable on-grade accuracy to allow the configuration to match jobsite tolerances
  • Exceeds industry standards for vibration, temperature, and electrical protection
  • Currently featured on M-series and H series motor graders

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