Conductivity, water content and soil temperature 5TE sensor probe
Product Code: CH-9402-P
The Conductivity, water content and soil temperature sensor probe (Decagon 5TE) can measure volumetric water content, electrical conductivity, and temperature of soil. The sensor uses an oscillator running at 70 MHz to measure the dielectric permittivity of soil to determine the water content (VWC). A thermistor in thermal contact with the sensor prongs provides the soil temperature, while the screws on the surface of the sensor form a two- sensor electrical array to measure electrical conductivity.
Specifications
General specifications
- Operating temperature: -40 to 60 ºC
- Dielectric measurement frequency: 70 MHz
- Measurement time: 150 ms
- Dimensions: 10 cm x 3.2 cm x 0.7 cm
- Prong length: 5.2 cm
- Cable length: 5 m
Volumetric water content
- Range: Apparent dielectric permittivity (εa): 1 (air) to 80 (water)
- Resolution:
- 0.1 εa (unitless) from 1 to 20,
- < 0.75 εa (unitless) from 20 to 80
- 0.0008 m3/ m3 (0.08% VWC) from 0 to 50% VWC
- Accuracy: εa : ±1 εa (unitless) from 1 to 40 (soil range), ±15% from 40 to 80 (VWC)
Bulk electrical conductivity
-
Range: 0 to 23 dS/m (bulk)
- Resolution: 0.01 dS/m from 0 to 7 dS/m, 0.05 dS/m from 7 to 23 dS/m
- Accuracy: ±10% from 0 to 7 dS/m
Temperature
- Range: −40 to 60 ºC
- Resolution: 0.1 ºC
- Accuracy: ±1 ºC
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