The 10HS Soil Moisture Sensor is the newest member of the Decagon Soil Moisture Sensor Family. The large sphere of influence allows you to measure the volumetric water content of a large soil sample volume (approximately 1 L). The 10HS obtains volumetric water content by measuring the dielectric constant of the media through the utilization of capacitance/frequency domain technology. In addition, the 10HS sensors incorporate a high frequency oscillation, which allows the sensor to accurately measure soil moisture in any soil with minimal salinity and textural effects.
An on-board voltage regulator allows Decagon factory calibrations to be used with any excitation voltage above 3V. The factory calibration can be used in most typical soils with a bulk EC up to 8 dS/m. Output can also be set to dielectric for use with the Topp Equation or other applicable dielectric to volumetric water content conversion equations.
The 10HS Soil Moisture Sensor Applications:
•Vadose zone monitoring
•Plant-soil-water interaction studies