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Soil Moisture & Temperature Sensor

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Soil Moisture & Temperature Sensor

    • Soil Moisture, Temperature, and Electrical Conductivity
    • Monitor Salt Levels
    • Engineered for Accuracy
    • Easy Installation
    • Integrate with Data Loggers
    • Fertigation Management,
    • Irrigation Scheduling,
    • Plant Disease Forecasting,
    • Plant Ecology,
    • Soil Respiration

    • ACCURACY
    Apparent Dielectric Permittivity (εa): ± 1 εa  (unitless) from 1 – 40 (soil range); ± 15% from 40 – 80 (soil range)
    Soil Volumetric Water Content (VWC): Using Topp equation: ± 0.03 m3/m3 (± 3% VWC) typical in mineral soils that have solution electircal conductivity < 10 dS/m
    Using medium specific calibration, ± 0.01 – 0.02 m3/m3 (± 1 – 2% VWC) in any porous medium
    Electrical Conductivity (EC): ± 10% from 0 to 7 dS/m, user calibration required above 7 dS/m
    Temperature: ± 1°C
    • RESOLUTION
    εa: 0.1 εa (unitless) from 1 – 20, < 0.75 εa (unitless) from 20 – 80
    VWC: 0.0008 m3/m3 (0.08% VWC) from 0 to 50% VWC
    EC: 0.01 dS/m from 0 to 7 dS/m, 0.05 dS/m from 7 to 23.1 dS/m
    Temperature: 0.1°C
    • RANGE
    εa: 1 (air) to 80 (water)
    EC: 0 – 23 dS/m (bulk)
    Temperature: -40 – 50°C
    • SENSOR TYPE
    VWC: Frequency domain
    EC: Two probe design
    Temperature: Thermistor
    • DIMENSIONS
    10 cm x 3.2 cm x 0.7cm
    • MEASUREMENT TIME
    150 ms (milliseconds)
    • POWER
    3.6 – 15 VDC, 0.3 mA quiescent, 10 mA during 150 ms measurement
    • OPERATING ENVIRONMENT
    -40°C to 50°C
    • OUTPUT
    RS232 (TTL) or SDI-12
    • CABLE LENGTH
    5 m standard, custom cable lengths available upon request
    • CABLE CONNECTOR TYPES
    3.5mm “stereo” plug, or stripped and tinned lead wires (3)
    • DATA LOGGER COMPATIBILITY (NOT EXCLUSIVE)
    Sutron Dataloggers: Xpert, XLite, 8310
    Decagon: Em50 series loggers, ProCheck; Campbell Scientific: Any logger with serial I/O (CR10X, CR850, CR1000, CR3000, etc.)
    Other: Any data acquisition system capable of 3.6-15V excitation and serial or SDI-12 communication
    • WARRANTY
    One year, parts and labor

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