TDR Rod Spacer
Measuring soil moisture in the ground very superficially is possible with this rod spacer.
Working with the 3.8 cm TDR rods (ST-6428FS4) exclusively you can measure at two different depths:
Suitable for use with the FieldScout TDR 350 and 150 meters. On the FieldScout TDR 350 and 150 meters the use is automatically available by chosing in the Settings Menu for Rod Length option SPCR 0.5" or SPCR 1.0".