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Biophysical Instrumentation: Soil Matric Potential Sensor <br />Soil r <br />tric <br />• i <br />r <br />Sensor <br />Soils Research <br />Plant Research <br />Distributors <br />Contact Decagon <br />Customer Service <br />More Information <br />Page 1 of 2 <br />The soil matric water potei <br />sensor immediately tells yc <br />water is availabe for plant <br />or if water will drain from <br />surrounding soil. It is buriE <br />to allow it to equilibrate wi <br />surrounding soil for long -t( <br />monitoring. At equilibrium, <br />water potential of the prob <br />determined by measuring i <br />content of the ceramic usir <br />capacitance method, whicl <br />identical to the ECH20 prof <br />knowing the water content <br />moisture characteristic of t <br />ceramic, the water potenti. <br />obtained. <br />Coming Soon, Available <br />The matric potential sensors are currently being beta -tested at various resea <br />institutions around the world. Once the data is returned and we find it to be <br />satisfactory, they will be released for production and sale. Here is a sample I <br />organizations where it is currently undergoing testing: <br />• University of Wisconsin -Madison <br />• Tea Research Institute (Sri Lanka) <br />• The Toro Company <br />• USGS <br />• Washington State University <br />• NARC Tsukuba (Japan) <br />• Shimane University <br />• Iwate University <br />• Universitat de Lleida <br />• Oregon State University <br />• Saga University <br />• University of Missouri -Columbia <br />• University of Reading <br />http://www.decagon.com/instruments/matn'cprobe.html <br />7/13/2005 <br />