we do this for a ag product http://www.mywildeye.com/wildeye/soil-moisture-online/ http://www.mywildeye.com/wildeye/soil-moisture-online/ which can use a numb

we do this for a ag product http://www.mywildeye.com/wildeye/soil-moisture-online/ http://www.mywildeye.com/wildeye/soil-moisture-online/ which can use a number of different sensor makes, but http://www.decagon.com/en/soils/volumetric-water-content-sensors/ http://www.decagon.com/en/soils/volumetric-water-content-sen... seem pretty good