10HS
New
Soil Moisture Sensor from Decagon Devices.
Availability date:
The Sensor measures: | Soil Humidity |
Output Signal: | Voltage: 3 – 15 VDC @ 12—15mA |
The soil moisture probes ECH 2 O sensors are capacitive type FDR (Frequency Domain Reflectrometry , Reflectometry frequency domain) that measure the dielectric constant or permittivity to estimate soil moisture content.
The volume fraction occupied by soil water has a huge influence on the dielectric permittivity of soil as its dielectric value (80) is much higher than other soil constituents (mineral soil 4; organic matter, 4, air 1 ).
For this reason, when the amount of water varies soil, soil moisture probes ECH 2 O detect and measure this variation and directly related to the change in water content - VWC. And contrary to what happens with other sensors, soil moisture probes ECH 2 O NO are sensitive to texture and soil EC.
The 10HS sensor measures the soil moisture has a large measuring volume, largest area of influence, and is designed for all types ofapplications in field and laboratory
Precision in mineral Soils;
± 3% VWC
± 2% VWC with specific calibration
Voltage: 3-15 VDC @ 15mA 12
Oscillator Frequency: 70MHz
Volume of influence: 1l.
VWC range: 0-57%
Output signal: Voltage, polynomially correlated with VWC
Size: 14.5 x 3.3 x 0.7 cm
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