SS-SMS is a highly accurate and highly sensitive soil moisture measuring sensor. It works on the principle of electromagnetic pulse (FDR: Frequency Domain Reflectometry) to measure the dielectric constant of the soil. The stainless-steel probe is inserted into the soil surface or soil profile to quickly online measurement of soil volumetric moisture content. This method is the most popular method of soil moisture measurement. It can be used permanently embedded in the soil.

Soil moisture sensor can be widely applied to the soil moisture monitoring, water-saving irrigation, greenhouse control, fine agriculture, hydrology and meteorology, and other fields etc.