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SOIL MOISTURE

The 100SMT is an accurate soil moisture probe for monitoring water content and soil temperature.

The oscillation frequency is related to the dielectric permittivity of the surrounding medium.

The relation between the permittivity and the soil moisture depends on the soil type and the soil temperature. Therefore all dielectric measurement techniques require a material and temperature dependent calibration for highest precision.

Technical details

Multilayer printed circuit board	Butyrate body, ceramic tip, neoprene stopper
Overall dimensions	220 x 32 x 10 mm
Connector cable length	1-10 m
Volumetric water content accuracy	~ 1.5% (depending on soil specific calibration)
Volumetric water content resolution	~ 0.5%
Temperature range for temperature	-55°C to 125°C
Temperature range for permittivity	-10°C to 70°C
Temperature accuracy	± 0.5°C
Weight	approx. 250 g
Power consumption	65 mA for less than 1s (during measurement)
Voltage supply	4-12 VDC, up to 28V on request Reverse polarity protection and overvoltage protection
Interface Needed	PRO1300 – SMT Soil Moisture Interface needed