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| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-1500 |
| Input Channels | 3 BNC (current-output sensors) |
| Sampling Rate | up to 500 Hz (raw mode), 0.01–20 Hz (standard mode) |
| Storage Capacity | 1 GB FAT16 |
| GPS Option | Radiosonde Nova® RF Antenna Module (CEP ≤ 2.5 m, 1 Hz update rate) |
| Operating Temperature | –20 to +50 °C |
| Battery Life | up to 80 h (GPS off), 40 h (GPS on) |
| Weight | 0.454 kg (with batteries) |
| Compliance | Designed for ASTM E2917, ISO 9060:2018 Class C spectral response alignment (when used with LI-COR PAR, solar, or visible light sensors) |
| Brand | Dynamax |
|---|---|
| Origin | USA |
| Model | HCFM-XP Gen3 |
| Measurement Diameter Range | 1–36 mm |
| Flow Rate Range | 0.01–350 g/h (5 selectable ranges) |
| Hydraulic Conductance Range | 7.7×10⁻⁸ to 3.5×10⁻⁴ kg·s⁻¹·MPa⁻¹ |
| Pressure Output Resolution | 0.1 kPa |
| Max Operating Pressure | 620 kPa |
| Deaerated Water Reservoir Capacity | 0.7 L |
| Compressed Gas Cylinder Capacity | 170 L (at STP), CGA-580 valve |
| Data Acquisition | 1 reading per 2 s |
| A/D Conversion | 24-bit dual analog/digital |
| Dimensions (L×W×H) | 61×48×23 cm |
| Weight | 15 kg |
| Power & Interface | USB-powered, integrated data logging |
| Brand | Dynamax |
|---|---|
| Origin | USA |
| Model | SGDC |
| Type | Heat Balance-Based Stem Flow Sensor |
| Compliance | Validated per USDA-ARS protocols (Lascano et al., 2016, *Agric. Sci.*) |
| Channel Requirement | 2 differential analog inputs (temperature + heater voltage/current) |
| Stem Diameter Range | 7–25 mm (model-dependent) |
| Enclosure Design | EXO-Skin conformal wrap |
| Heater Architecture | Molded, low-thermal-mass resistive element |
| Environmental Protection | IP67-rated moisture barrier |
| Calibration Traceability | NIST-traceable thermistor and voltage references |
| Brand | METER |
|---|---|
| Origin | USA |
| Model | TEMPOS |
| Type | Multiparameter Soil Thermal Property Analyzer |
| Compliance | ASTM D5334, IEEE Std 442, ISO 9001:2015, EN 61326-1:2013, CISPR 22 |
| Operating Temperature (Controller) | 0–50 °C |
| Sensor Operating Range | −50–150 °C |
| Power Supply | 5 × AA batteries (alkaline or rechargeable) |
| Battery Life | >250 high-power measurements |
| Data Storage | Flash memory, 2,048 full measurement records (raw + processed) |
| Display | Color LCD, 5.5 cm × 4.0 cm |
| Controller Dimensions | 18.5 × 10 × 3.5 cm |
| Carry Case | Ergonomic molded polymer, 37 × 30 × 10.5 cm |
| Interface | DB-15 sensor port |
| Connectivity | Mini-USB for data export |
| Temperature Resolution | ±0.001 °C |
| Measurement Cycle | Equilibration → Heating → Cooling, completed in ≤60 s |
| Brand | METER |
|---|---|
| Origin | USA |
| Model | 10HS |
| Sensor Type | Capacitive (Frequency Domain) |
| Operating Voltage | 3–15 VDC |
| Output Signal | 300–1250 mV (ratiometric, voltage-independent) |
| Measurement Volume | 1320 cm³ |
| Probe Length | 10 cm |
| Dimensions | 16.0 × 3.3 × 0.8 cm |
| Standard Cable Length | 5 m (custom up to 40 m) |
| Connector | 3.5 mm stereo jack or tinned 3-wire lead |
| Operating Temperature | –40 to +50 °C |
| Resolution | 0.0008 m³/m³ (0.08% VWC) in mineral soils (0–50% VWC) |
| Accuracy (mineral soils, standard calibration) | ±0.03 m³/m³ or ±3% VWC (EC < 10 dS/m) |
| Accuracy (soil-specific calibration) | ±0.02 m³/m³ or ±2% VWC |
| Dielectric Range | εₐ = 1–80 |
| Measurement Time | 10 ms |
| Compliance | ISO 9001:2015, CE (2014/30/EU, 2011/65/EU), EN 61326-1:2013, EN 50581:2012 |
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