Gasvoda, David S.. 1998. Campbell Water Content Reflectometer - Evaluation in Compacted Road Soils. 9871 2819. Missoula, MT: U.S. Department of Agriculture, Forest Service, Missoula Technology and Development Center.
This report describes tests using the Campbell Scientific, Inc., Model CS615 water content reflectometer to measure moisture in compacted road soils. The CS615 costs just $205, while instruments that employ the more accurate time domain reflectometry system cost several thousand dollars. Testing showed that the CS615 is not suitable for use in highly compacted road soils.
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