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pF soil water potential sensor

The pF sensor measures the pF value of the soil according to the principle of heat capacity. The pF value is the absolute value of the soil water potential and the logarithm. The calculation formula is: pF = log(-hPa). The sensor contains a heat capacity probe, which calculates the water potential of the soil by calculating the heat capacity of the ceramic head, so that the sensor can accurately measure the water potential of the soil in extremely dry and high salinity environments.



Features:
No calibration is required;
Maintenance free, low power consumption;
SDI-12 output, suitable for most data acquisition;
In dry soil or saline soil environment, it still has good measurement effect;
The sensor has a high protection level and is not affected by frost;
High sensitivity, can quickly respond to changes in soil moisture.

Technical Parameters:
Input voltage
7~13V
Current consumption
In working state: 55mA (5s);
In sleep state: 2mA
Preheat time
20~30s
output method
SDI-12
Measuring range
Water potential: 0~7 pF (0~10,000,000 hPa);
Temperature: -40~ +176 °F (-40 ~ +80 ℃)
Resolution
Water potential: 0.01pF;
Temperature: 0.1℃
Material
Stainless steel body, clay head
size
Length 100mm × width 20mm
cable length
10m

Origin: United States



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