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Soil moisture meter principle

 Soil moisture meter, also known as: soil moisture tester, soil moisture meter, soil moisture meter, soil moisture meter, rapid soil moisture meter, soil moisture Tachometer。

Soil moisture meter transmit certain frequency electromagnetic waves, electromagnetic waves transmitted along the probe, after reaching the bottom of the return, the detection probe output voltage, due to changes in the dielectric constant of the soil depends on the soil moisture content. Soil moisture meter through the output voltage and the relationship between the moisture of soil moisture content can be calculated.