Soil Carbon Flux Measurement System
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| Brand | Acclima |
|---|---|
| Origin | USA |
| Model | TDR-315N |
| Measurement Principle | Time-Domain Reflectometry (TDR) |
| Output Interface | SDI-12 |
| Probe Length | 15 cm |
| Waveform Rise Time (20–80%) | 300 ps |
| Timebase Resolution | 5 ps |
| Incident Pulse Amplitude | 2.3 V |
| Volumetric Water Content Range | 0–100% VWC |
| VWC Accuracy | ±2% FS |
| Dielectric Constant Range | 1–100 |
| EC Range (Bulk) | 0–6000 µS/cm |
| EC Accuracy | ±25 µS/cm (0–1000 µS/cm), ±2.5% (1000–2000 µS/cm), ±5% (2000–5000 µS/cm) |
| Temperature Range | −40 to +60 °C |
| Temp Accuracy | ±0.25 °C (5–35 °C), ±0.5 °C (−15 to +50 °C) |
| Housing | Waterproof Epoxy-Filled Enclosure |
| Cable | 5 m, 3-conductor, IP68-rated |
| Power Supply | 6.5–15 V DC |
| Quiescent Current | 10 µA |
| Active Current | 118 mA @ 12 V DC |
| Dimensions (Sensor Body) | 210 × 53 × 20 mm |
| Probe Diameter | 3.5 mm |
| Mass (Sensor Only) | 105 g |
| Origin | United Kingdom |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | ACE |
| Pricing | Upon Request |
| Brand | ADC Bio |
|---|---|
| Origin | United Kingdom |
| Model | ACE |
| Configuration | Master Control Unit + Up to 30 ACE Sensor Nodes |
| Power | Low-Voltage DC via Single Cable (No Pneumatic Tubing) |
| Max Network Radius | 200 m |
| Compliance | Designed for GLP-Compliant Field Deployment |
| Data Storage | Internal SD Card (No PC Required) |
| Interface | Local LCD + Keypad on Both Master and ACE Units |
| Optional Modules | O₂ Sensor, Hyperspectral Imaging Module, Thermal IR Imaging Module, ECODRONE® UAV Integration |
| Brand | ADC Bio |
|---|---|
| Origin | United Kingdom |
| Model | ACE Automated Soil Respiration System |
| CO₂ Analyzer Resolution | 1 ppm |
| Chamber Area | 415 cm² |
| Power Options | 12 V 40 Ah Rechargeable Battery (≈30 days field operation), Solar Panel, or 220 V AC |
| Sensor Expansion | Up to 6 soil temperature probes, 4 soil moisture sensors |
| Measurement Modes | Closed-chamber (transparent & opaque), Open-chamber (transparent & opaque) |
| Data Storage | Internal SD card |
| Operating Interface | 240×64 pixel LCD with 5-button microcontroller interface |
| Optional Modules | Soil O₂ sensor, Hyperspectral imaging module, IR thermal imaging module, ECODRONE® UAV integration kit, Custom gas extraction/sampling configuration |
| Brand | ADC Bio |
|---|---|
| Origin | United Kingdom |
| Model | EGA60 |
| CO₂ Measurement Range | 0–2000 ppm |
| H₂O Vapor Pressure Range | 0–75 mbar |
| O₂ Measurement (Optional) | 0–50% (0–23 mg/L) |
| Flow Rate per Channel | 0–500 mL/min |
| Resolution | CO₂ = 1 ppm, H₂O = 0.1 mbar, O₂ = 0.05% @ 20% O₂ |
| Accuracy | CO₂ (temperature & pressure compensated), O₂ = ±0.2% @ 20% O₂ |
| Response Time (O₂) | <1 s |
| Data Storage | Removable SD card (up to 16 million data points) |
| Display | 240 × 64 pixel monochrome LCD |
| Operating Temperature | 5–45 °C |
| Dimensions | 27 × 25 × 15 cm |
| Weight | 7.5 kg |
| Interfaces | RS232, USB Mini-B, 7-channel analog input (0–5 V / 0–20 mA) |
| Brand | ADC Bio |
|---|---|
| Origin | United Kingdom |
| Model | SRS-1000 T |
| CO₂ Range | 0–2000 ppm |
| CO₂ Resolution | 1 ppm |
| H₂O Range | 0–75 mbar |
| H₂O Resolution | 0.1 mbar |
| PAR Sensor Range | 0–3000 µmol·m⁻²·s⁻¹ |
| Soil Temperature Probe Range | 5–50 °C |
| Chamber Volume | 1 L |
| Chamber Diameter | 130 mm |
| Stainless Steel Collar Height | 75 mm |
| Acrylic Chamber Height | 70 mm |
| Operating Temperature | 5–45 °C |
| Battery Life | 10 h (2.8 Ah, 12 V lead-acid) |
| Display | 480 × 272 pixel WQVGA color touchscreen (95 × 53.9 mm) |
| Data Storage | SD card (up to 32 GB) |
| Interface | Mini-B USB & RS232 (9-pin D-sub) |
| Flow Rate | 68–340 µmol·m⁻²·s⁻¹ |
| Warm-up Time | 5 min @ 20 °C |
| Brand | ADC Bio |
|---|---|
| Origin | United Kingdom |
| Model | SRS-2000 T |
| CO₂ Range | 0–3000 ppm |
| CO₂ Resolution | 1 ppm |
| H₂O Range | 0–75 mbar |
| H₂O Resolution | 0.1 mbar |
| PAR Sensor Range | 0–3000 µmol·m⁻²·s⁻¹ |
| Soil Temperature Probe Range | 5–50 °C |
| Chamber Volume | 1 L |
| Chamber Diameter | 130 mm |
| Chamber Height (Stainless Steel Ring + Acrylic Hood) | 145 mm |
| Flow Rate | 68–340 µmol·m⁻²·s⁻¹ |
| Preheat Time | 5 min @ 20 °C |
| Display | 480 × 272-pixel WQVGA color touchscreen (95 × 53.9 mm) |
| Battery | 7.5 Ah / 12 V Li-ion (16 h continuous operation) |
| Data Storage | SD card (up to 32 GB) |
| Operating Temperature | 5–45 °C |
| Control Unit Dimensions & Weight | 230 × 110 × 170 mm / 4.1 kg |
| Handle Weight | 0.8 kg |
| Chamber Weight | 645 g (325 g ring + 320 g hood) |
| Brand | AZ (Beijing Aozuo) |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | AZ-iChamber |
| Height Options | 0.5 / 0.8 / 2.0 m |
| Footprint Options | 0.08 / 0.3 / 1.0 m² |
| Configurable | Transparent or Opaque |
| Brand | AZ (Beijing Aozuo Ecological Instruments Co., Ltd.) |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | OEM Manufacturer |
| Country of Origin | China |
| Model | AZG-300 |
| Price | Upon Request |
| Measurement Principle | NDIR for CO₂ |
| CO₂ Range | 0–2000 ppm (optional: 0–5000 / 0–10,000 / 0–80,000 ppm) |
| CH₄ Range | 0–100 ppm (optional: 0–100% vol) |
| CO₂ Resolution | 0.01 ppm |
| CH₄ Resolution | 0.1 ppm |
| Accuracy | ≤ ±1% F.S. |
| Gas Flow Control | 0.1–1 L/min |
| Warm-up Time | 20 min |
| Response Time (T₉₀) | 2 s |
| Output Interface | RS232 |
| Display | Color TFT touchscreen |
| Operating Temp. | 0–45 °C |
| Operating Humidity | 1–98% RH (non-condensing) |
| Power Supply | AC 85–265 V, 40 W |
| Dimensions (Analyzer) | 57 × 41 × 22 cm |
| iChamber Options | Ø0.35 m × 0.5 m (0.08 m²), Ø0.62 m × 0.8 m (0.3 m²), Ø1.2 m × 1.5 m (1.0 m²) |
| Brand | Lanjing |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | LJ-PF1000 |
| CO₂ Range | 0–2000 ppm (customizable) |
| CH₄ Range | 0–100 ppm (customizable) |
| H₂O Range | 0–6% |
| CO₂ Precision | ±0.1 ppm @ 1 Hz |
| CH₄ Precision | ±10 ppb @ 1 Hz |
| H₂O Accuracy | ±1.5% of reading |
| Temperature Accuracy | ±0.1 °C (20–60 °C) |
| Sampling Flow Rate | 1 L/min (adjustable) |
| Chamber Dimensions | Ø220 mm × 120 mm H |
| Chamber Volume | 3140 cm³ |
| Battery Life | 8 hours (Li-ion) |
| Operating Temp. | −30 to +60 °C |
| Operating Humidity | <99% RH (non-condensing) |
| Weight | <10 kg |
| Data Output | Real-time flux & respiration rate calculation |
| Connectivity | Wi-Fi, BeiDou/GPS dual-mode (optional) |
| Expandability | 预留RS485, analog, and digital I/O ports for optional sensors (PAR, soil T/RH, anemometer, 4G telemetry) |
| Brand | LI-COR |
|---|---|
| Origin | Germany |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Import Status | Imported |
| Model | LI-870 |
| Price Range | USD 52,000–65,000 |
| Brand | Yuntang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | YT-THm |
| CO₂ Range | 0–5000 ppm |
| CO₂ Resolution | 0.1 ppm |
| CO₂ Accuracy | ±3 ppm |
| Temperature Range | −20 to 80 °C |
| Temperature Accuracy | ±0.2 °C |
| Relative Humidity Range | 0–85 %RH |
| RH Accuracy | ≤±1 %RH |
| PAR Range | 0–3000 µmol·m⁻²·s⁻¹ |
| PAR Accuracy | <±1 µmol·m⁻²·s⁻¹ |
| Flow Rate (Mechanical) | 0–1.5 L/min (±1% full scale |
| Flow Rate (Optional Electronic) | 0–1 L/min, Resolution: 0.0001 L/min |
| Chamber Dimensions | Ø110 mm × 200 mm (customizable) |
| Operating Environment | −20 to 60 °C, 0–85 %RH (non-condensing) |
| Battery | 8.4 V DC Li-ion, 10 h continuous operation |
| Data Storage | 16 GB internal (expandable to 32 GB) |
| Display | 3.5″ TFT color LCD, 800×480 px |
| Interface | USB for direct data export |
| Weight | 3.25 kg (main unit) |
| Optional | Soil moisture & temperature probe |
| Brand | Sommer |
|---|---|
| Origin | Austria |
| Model | DP-10 |
| Measurement Principle | Oscillating U-tube |
| Resolution | 0.001 g/cm³ |
| Measurands | NaCl, CaCl₂, MgCl₂ aqueous solution density & concentration |
| Analog Output | 0–10 V |
| Digital Interface | RS232 (9600 Bd, ASCII) |
| Power Supply | 20–30 VDC (80 mA) |
| Operating Temperature | −25 to +50 °C |
| Sample Temperature Range | −30 to +30 °C |
| Housing Dimensions | 150 × 340 × 100 mm (W × H × D) |
| Wetted Parts Material | Stainless Steel DIN 1.4439 |
| Process Connection | 10 mm tube |
| Weight | ~2 kg |
| Ingress Protection | IP65 |