Electrical Density Gauge Model E – EDGe



Electrical Density Gauge Model E – EDGe

Supports the following standards: AASHTO TP112

Humboldt‘s NEW Electrical Density Gauge Model E (EDGe) is used for determining the density and moisture content of aggregate, soil aggregate compacted type I or II base, or native soil materials that are suitable for shallow foundations, such as secondary roads or base aggregate that is compacted in-place prior to the asphalt or concrete placement at the final grade. The EDGe quality assurance / quality control (QA/QC) system is lightweight, easy to use, and nuclear free.

The EDGe consists of two independent units, one for use in the lab and one for field use, which work together with the use of a Microsoft app to ensure precise and accurate measurements. The EDGe provides a direct correlation between the Proctor test data of a representative aggregate/soil sample in the lab and readings of the same material in the field.

The lab unit provides you with the tools to take readings directly from six-inch Proctor molds, while performing standard or modified Proctor tests. The field unit is lightweight and comes with a ruggedized backpack for easy transport and storage. Both units are nuclear free, which eliminates the need for radiation safety compliance regimens and transportation restrictions. The EDGe is simple to use.

The advantages of using the EDGe are:

  • Complies with AASHTO TP112 and is an enhancement of ASTM D7698 that includes a laboratory aggregate calibration procedure
  • Nuclear-free device
  • Accurate and repeatable results that correlate to either ASTM D1557 or ASTM D698 standard Proctor tests
  • Does not require highly trained or licensed technicians
  • Does not require special handling for shipping or regulatory compliance for hazardous materials
  • Easy-to-learn and easy-to-use with its step-by-step menu
  • Lightweight and easily transportable
  • Eliminates costs associated with nuclear gauges

EDGe App
The EDGe App is available free from the Microsoft App Store. This app allows you to operate both the Lab and Field units of the EDGe, as well as provides the field unit with the lab Proctor data. In the field, the app will record dry density; wet density; percent moisture content; relative compaction; date; time, GPS coordinates and generate a location map. This data is routinely used for construction QA/QC certification reporting. The app can generate the reports in a PDF format, which can be saved or shared with others.

EDGe Software Features:

  • Download job data
  • Save and share customized reports in PDF format
  • Operate both the Lab and Field Unit
  • Provide the Field Unit with Proctor Data
  • Time/Date, GPS stamps for each test
  • Generate a location map
  • Computer/Tablet Required But Not Included

Recommended Computers:

  • Laboratory Use: Any Windows 10 Laptop or Tablet with Bluetooth® LE 4.0 or higher (e.g. MS Surface Pro or MS Surface Go)
  • Field Use: MS Surface Go 2 Tablet with Ruggedized Shell with Bluetooth® LE 4.0 or higher (recommended: Urban Armor Gear Shell & Screen Shield for Surface Go 2)
  • Microsoft compatible pen for laboratory and field use, optional mouse for laboratory use
  • A keyboard is recommended for laboratory use

For more information about Humboldt’s New EDGe,


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