sonde

{
  "id": "MLC-T-ENV-026146",
  "term": "sonde",
  "field": "Environment",
  "definition": "Used in horizontal directional drilling, a locating device in the drillhead that transmits wireless radio signals to a receiver on the surface. These signals inform the driller about the drillhead’s location, depth, and orientation.",
  "subject": "Land, waste and cleanup",
  "references": [
    "Glossary of Technical Terms: Office of Underground Storage Tanks; Office of Underground Storage Tanks Technical Terms"
  ],
  "url": "https://mlchart.com/terminology/environment/sonde/"
}