Electrical Density Gauge – EDG

The Electrical Density Gauge (EDG) is a nuclear-free alternative for determining the moisture and density of compacted soils used in road beds and foundations. The EDG is a portable, battery-powered instrument capable of being used anywhere without the concerns and regulations associated with nuclear safety. Its user-friendly, step-by-step menu guides the user through each step of the testing procedure and cautions the user when values do not correspond to established curves for the material being tested. Easy-to-use, the EDG can be used as a construction aid to monitor day-to-day compaction operations by providing performance and measurement results highly comparable to those achieved with traditional methods, including the nuclear gauge and/or a sand-cone and oven moisture test combination. When conducting a test, the EDG measures and displays the results for wet and dry density, gravimetric moisture content and percent compaction.


The advantages of using the EDG are:

  • It does not require a highly-trained or licensed technician
  • It does not require special handling for shipping or the regulatory compliance for hazardous materials
  • It is easy-to-learn and easy-to-use with its step-by-step menu
  • It is lightweight and easily transportable
  • It is accurate and repeatable with results that mirror known testing methods

The EDG Gauge includes:

  • Console/Case
  • 4-tapered 6″ darts
  • Hammer
  • Soil sensor and cables
  • Dart template
  • Temperature probe
  • Battery charger
  • Field verifier


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