Italian Nesa Soil Moisture (Humidity) Sensor
Soil moisture sensor is a device that detects the dielectric constant of soil through high-frequency measurement (70MHz). The magnitude of this value depends on the moisture content of the soil and is insensitive to water mineralization. Water in the soil is a conductor, and based on its concentration, a relative humidity indication of the soil can be obtained. The sensor automatically performs temperature compensation, and the output is standard 4-20 mA, 0-2 Vdc, or digital RS485/Modbus using the MCS module.