Other Soil Analyzers
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| Brand | Acclima, Inc. |
|---|---|
| Origin | USA |
| Model | RD1200 |
| Instrument Type | Soil Moisture / Water Potential Analyzer |
| Measurement Principles | TDR (Time Domain Reflectometry) with Integrated Dielectric, Thermal, and Conductivity Sensing |
| Soil Volumetric Water Content Range | 0–100% VWC |
| Resolution | 0.1% VWC |
| Accuracy | ±1% VWC (coarse-medium soils), ±2.5% VWC (fine-textured soils) |
| Soil Temperature Range | −40 to +60 °C |
| Resolution | 0.1 °C |
| Accuracy | ±0.25 °C |
| Dielectric Constant Range | 1–80 |
| Resolution | 0.1 |
| Accuracy | ±1% (coarse-medium), ±2% (fine-textured) |
| Bulk Electrical Conductivity (ECb) | 0–5000 μS/cm |
| Pore Water Electrical Conductivity (ECw) | 0–55,000 μS/cm |
| EC Resolution | 1 μS/cm |
| EC Accuracy | ±25 μS/cm (0–1000 μS/cm), ±2.5% (1000–2000 μS/cm), ±5% (2000–5000 μS/cm) |
| GPS Module | Integrated SDI-12-compatible GNSS receiver (latitude, longitude, altitude, UTC time sync) |
| Data Storage | Internal non-volatile memory + USB 2.0 interface supporting up to 25 GB flash drives |
| Power Supply | 5 VDC @ 1 A (AC adapter: 100–240 VAC input) |
| Dimensions | 150 × 80 × 25 mm |
| Weight | 0.3 kg |
| Brand | Acclima, Inc. |
|---|---|
| Origin | USA |
| Model | SWHMS |
| Instrument Type | Multi-parameter Soil Monitoring System |
| Compliance | ASTM D5084, ISO 18643, USCRN Protocols, GLP-aligned Data Logging |
| Power Supply | 6–17 VDC |
| Communication | SDI-12, RS-232/RS-485 (via CR1000X) |
| Operating Temperature | −40 °C to +85 °C |
| Enclosure Rating | IP67/IP68 (sensor-specific) |
| Brand | Acclima, Inc. |
|---|---|
| Origin | USA |
| Model | TDR305N |
| Instrument Type | Soil Moisture / Water Potential Analyzer |
| Volumetric Water Content Range | 0–100% VWC |
| Resolution | 0.1% VWC |
| Accuracy | ±2% FS |
| Repeatability (RMS) | 0.07% VWC |
| Dielectric Constant Range | 1–100 |
| Resolution | 0.1 |
| Accuracy | ±2% |
| Bulk EC Range | 0–3000 µS/cm |
| Stability | ±1% FS |
| Soil Temperature Range | −40 to +60 °C |
| Resolution | 0.1 °C |
| Accuracy | ±0.25 °C (5–35 °C), ±0.5 °C (−15–50 °C) |
| Pore Water EC (Hilhorst Model) | 0–55,000 µS/cm |
| Volume EC Resolution | 1 µS/cm |
| Repeatability | 3 µS/cm |
| Accuracy | ±25 µS/cm (0–1000 µS/cm), ±2.5% (1000–2000 µS/cm), ±5% (2000–5000 µS/cm) |
| Rise Time (20–80%) | 300 ps |
| Waveform Digitization Resolution | 5 ps |
| Incident Pulse Amplitude | 2.3 V |
| Power Supply | 6.5–15 V DC |
| Quiescent Current | 10 µA |
| Active Current | 118 mA @ 12 V DC |
| Output Interface | 3-wire SDI-12 v1.4 compliant |
| Probe Dimensions | 49.9 mm × Ø3.5 mm |
| Body Dimensions | 150 × 33 mm |
| Weight (no cable) | 121 g |
| Standard Cable Length | 5 m (optional: 10 m) |
| Housing | Waterproof epoxy-filled enclosure |
| Brand | Acclima, Inc. |
|---|---|
| Origin | USA |
| Model | TDR305W |
| Measurement Principle | Time-Domain Reflectometry (TDR) |
| Output Interface | 3-wire SDI-12 v1.4 compliant |
| Volumetric Water Content Range | 0–100% VWC |
| Resolution | 0.1% VWC |
| Accuracy | ±5% FS |
| Bulk EC Range | 0–9000 µS/cm |
| Pore Water EC (Hilhorst model) | 0–55,000 µS/cm |
| EC Accuracy | ±25 µS/cm (0–1000 µS/cm), ±2.5% (1000–2500 µS/cm), ±5% (2500–6000 µS/cm), ±7.5% (6000–9000 µS/cm) |
| Dielectric Constant Range | 1–100 |
| Resolution | 0.1 |
| Accuracy | ±4% |
| Temperature Range | −40 to +55 °C |
| Resolution | 0.1 °C |
| Accuracy | ±0.25 °C (5–35 °C), ±0.5 °C (−15–50 °C) |
| Waveform Digitization Resolution | 5 ps |
| Input Pulse Amplitude | 2.3 V |
| Housing | Waterproof epoxy-filled enclosure |
| Power Supply | 4.2–15 V DC |
| Quiescent Current | <26 µA |
| Active Current | 90 mA @ 12 V DC |
| Dimensions (sensor head) | 110 × 53 × 20 mm |
| Probe Length | 49.55 mm |
| Probe Diameter | 3.5 mm |
| Weight (bare sensor) | 94 g |
| Standard Cable Length | 5 m (optional: 10 m) |
| Brand | Acclima, Inc. |
|---|---|
| Origin | USA |
| Model | TDR310N |
| Sensor Type | TDR-based Volumetric Water Content, Soil Temperature, and Bulk Electrical Conductivity Sensor |
| Measurement Principle | Time-Domain Reflectometry (TDR) with 5 ps timebase resolution |
| Output Interface | 3-wire SDI-12 v1.4 compliant |
| Power Supply | 6.5–15 V DC |
| Idle Current | 10 µA |
| Active Current | 118 mA @ 12 V DC |
| Probe Dimensions | 99.2 mm × Ø3.5 mm |
| Body Dimensions | 200 mm × 33 mm |
| Weight (sensor only) | 132 g |
| Standard Cable Length | 5 m (optional 10 m) |
| Enclosure | Waterproof epoxy-filled housing |
| Brand | Acclima, Inc. |
|---|---|
| Origin | USA |
| Model | TDR310W |
| Sensor Type | TDR-based Volumetric Water Content, Soil Temperature & Bulk Electrical Conductivity Sensor |
| Measurement Principle | Time-Domain Reflectometry (TDR) with Ultra-High-Speed Waveform Generation & 5 ps Timebase Resolution |
| Output Interface | 3-Wire SDI-12 v1.4 Compliant |
| Probe Length | 100 mm |
| Probe Diameter | 3.5 mm |
| Housing | Waterproof Epoxy-Filled Enclosure |
| Power Supply | 6.5–15 V DC |
| Quiescent Current | 10 µA |
| Active Current | 118 mA @ 12 V DC |
| Operating Temperature | –40 °C to +60 °C |
| Cable Length | 5 m (standard), optional 10 m |
| Weight | 94 g (sensor head only) |
| Dimensions (housing) | 160 × 53 × 20 mm |
| Volumetric Water Content Range | 0–100 % VWC |
| VWC Resolution | 0.1 % VWC |
| VWC Accuracy | ±2 % FS |
| VWC Repeatability (RMS) | 0.07 % VWC |
| Dielectric Constant Range | 1–100 |
| Dielectric Resolution | 0.1 |
| Dielectric Accuracy | ±2 % |
| Bulk EC Range | 0–6000 µS/cm |
| Bulk EC Resolution | 1 µS/cm |
| Bulk EC Accuracy | ±25 µS/cm (0–1000 µS/cm), ±2.5% (1000–2000 µS/cm), ±5% (2000–5000 µS/cm) |
| Pore Water EC (Hilhorst model) | 0–55,000 µS/cm |
| Soil Temperature Range | –40 °C to +60 °C |
| Temp Resolution | 0.1 °C |
| Temp Accuracy | ±0.25 °C (5–35 °C), ±0.5 °C (–15–50 °C) |
| Temp Repeatability (RMS) | 0.01 °C |
| Rise Time (20–80%) | 300 ps |
| Waveform Digitization Resolution | 5 ps |
| Incident Pulse Amplitude | 2.3 V |
| Brand | Acclima, Inc. |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported Instrument |
| Model | TDR315H |
| Instrument Type | Volumetric Water Content / Soil Water Potential Analyzer |
| VWC Range | 0–100% |
| VWC Resolution | 0.1% |
| VWC Repeatability (RMS) | ±0.07% |
| VWC Accuracy | ±1% (coarse-medium soils), ±2.5% (fine-textured soils) |
| Dielectric Constant Range | 1–80 |
| Dielectric Resolution | 0.1 |
| Dielectric Accuracy | ±1% (coarse-medium), ±2% (fine-textured) |
| Soil Temperature Range | −40 to +60 °C |
| Temp Resolution | 0.1 °C |
| Temp Accuracy | ±0.25 °C |
| Bulk EC Range | 0–5000 µS/cm |
| Pore Water EC Range | 0–55,000 µS/cm |
| EC Resolution | 1 µS/cm |
| EC Repeatability | ±3 µS/cm |
| EC Accuracy | ±25 µS/cm (0–1000 µS/cm), ±2.5% (1000–2000 µS/cm), ±5% (2000–5000 µS/cm) |
| Response Time | 0.25 s |
| Power Supply | 3.5–15 V DC |
| Operating Current | 36 mA @ 12 V DC (active), <10 µA (idle) |
| Output Protocol | SDI-12 |
| Probe Length | 15 cm |
| Probe Diameter | 0.35 cm |
| Housing Dimensions | 21.15 × 5.3 × 1.9 cm |
| Weight | 440 g (body only) |
| Brand | Acclima, Inc. |
|---|---|
| Origin | USA |
| Model | TDR315N |
| Instrument Type | Soil Moisture / Water Potential Analyzer |
| Volumetric Water Content Range | 0–100% VWC |
| Resolution | 0.1% VWC |
| Accuracy | ±2% FS |
| Dielectric Constant Range | 1–100 |
| Resolution | 0.1 |
| Accuracy | ±2% |
| Bulk EC Range | 0–6000 µS/cm |
| Pore Water EC (Hilhorst Model) | 0–55,000 µS/cm |
| EC Resolution | 1 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) |
| Temp Resolution | 0.1 °C |
| Rise Time (20–80%) | 300 ps |
| Waveform Digitization Resolution | 5 ps |
| Input Voltage | 6.5–15 V DC |
| Quiescent Current | 10 µA |
| Active Current | 118 mA @ 12 V DC |
| Output Interface | 3-wire SDI-12 v1.4 compliant |
| Probe Dimensions | 15 mm L × 3.5 mm Ø |
| Sensor Body | 210 mm × 53 mm × 20 mm |
| Weight (bare) | 105 g |
| Cable Length | 5 m standard (10 m optional) |
| Enclosure | Waterproof epoxy-filled housing |
| Brand | Acclima, Inc. |
|---|---|
| Origin | USA |
| Model | TDT |
| Instrument Type | Volumetric Water Content (VWC) and Bulk Electrical Conductivity (EC) Sensor |
| Measurement Principle | Time Domain Transmission (TDT) |
| VWC Range | 0–100.00% VWC |
| VWC Resolution | 0.06% VWC |
| VWC Accuracy | ±2% VWC (typical mineral soils) |
| Bulk EC Range | 0–5 dS/m |
| Bulk EC Resolution | 0.01 dS/m |
| Bulk EC Accuracy | ±0.2 dS/m |
| Bulk EC Stability | ±1% of full scale (0–5 dS/m) |
| Soil Temperature Range | –20 to +50 °C |
| Soil Temperature Resolution | 0.1 °C |
| Soil Temperature Accuracy | ±0.3 °C (0–40 °C), ±0.5 °C (–20–0 °C and 40–50 °C) |
| Response Time | 450 ms |
| Power Supply | 5–15 VDC (12 VDC nominal) |
| Current Draw | 84 mA (during measurement burst) |
| Output Protocol | SDI-12 v1.3 |
| Operating Temperature (in soil) | 0.5–50 °C (non-frozen conditions) |
| Storage Temperature | –20 to +75 °C |
| Dimensions | 20 × 5.33 × 1.5 cm |
| Weight | 220 g |
| Cable Length | 10 m |
| Brand | Active Spectrum |
|---|---|
| Origin | USA |
| Model | pH 400, pH 600 |
| pH Accuracy | ±0.01 pH (pH400), ±0.005 pH (pH600) |
| pH Range | 0.00–14.00 |
| Temperature Range | −5 to 120 °C |
| Temperature Accuracy | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| pH Resolution | 0.01 (pH400), 0.005 (pH600) |
| Calibration Options | 1-point, 2-point (pH400) |
| Data Storage | 10 readings (pH400), 65,000 readings (pH600) |
| Enclosure Rating | IP65 |
| Power | 3 × rechargeable AA batteries (8 h charge time) |
| Probe Type | ISFET-based, glass-free, interchangeable sharp-tip (soil/solid media) and blunt-tip (liquid/non-soil media) probes |
| Auto Temperature Compensation (ATC) | Yes |
| Dimensions | 80 × 160 × 36 mm |
| Weight | 379 g |
| Brand | Active Spectrum |
|---|---|
| Origin | USA |
| Model | TDR350 |
| Instrument Type | Multi-parameter Soil Analyzer |
| Probe Length Options | 3.8 cm, 7.6 cm, 12 cm, 20 cm |
| Measurement Principle | Time-Domain Reflectometry (TDR) |
| Volumetric Water Content (VWC) Range | 0–saturation |
| VWC Resolution | 0.1% VWC |
| VWC Accuracy | ±3.0% (at EC < 2 mS/cm) |
| Temperature Range | −30°C to +60°C |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±1°C |
| EC Range | 0–5 mS/cm |
| EC Resolution | 0.01 mS/cm |
| EC Accuracy | ±0.1 mS/cm |
| Probe Diameter | 0.5 cm |
| Probe Spacing | 3.3 cm |
| Data Storage Capacity | >50,000 geotagged records |
| Display | Backlit LCD |
| Brand | ADC Bio |
|---|---|
| Origin | United Kingdom |
| Model | ACE |
| Instrument Type | Multi-parameter Soil Respiration Analyzer |
| CO₂ Measurement Range | 0–896 ppm |
| Resolution | 1 ppm |
| Accuracy | ±1% of reading |
| IRGA Drift | ≤0.6% per 24 h |
| PAR Sensor | 0–3000 µmol m⁻² s⁻¹ (Silicon Photodiode) |
| Soil Temperature Range | −20 to +50 °C |
| Soil Moisture (SM300) | 0–100 vol%, ±3% (soil-calibrated) |
| Soil Moisture (Theta Probe) | 0–1.0 m³·m⁻³, ±1% (factory-calibrated) |
| Flow Control | 200–5000 mL/min (±3% accuracy) |
| Chamber Volumes | Closed-mode 2.6 L, Open-mode 1.0 L |
| Chamber Diameter | 23 cm |
| Power Supply | 12 V DC, 40 Ah battery (28 days continuous operation) |
| Data Storage | 1 GB CompactFlash card (up to 4 million records) |
| Communication | RS-232 (up to 19200 baud), rugged 3-pin waterproof connector |
| Display | 240 × 64 pixel LCD |
| Dimensions (H×W×D) | 82 × 33 × 13 cm |
| Weight | 7.0 kg |
| Network Capacity | Up to 30 units within 200 m radius |
| Operating Modes | Closed-chamber and open-path configurable |
| Brand | Aerodyne |
|---|---|
| Origin | USA |
| Model | TILDAS-N2O |
| Detection Principle | Tunable Infrared Laser Direct Absorption Spectroscopy (TILDAS) |
| Measurement Range | Sub-ppt to ppm N₂O |
| Precision | ≤30 ppt (1σ, 1 s integration) |
| Temporal Resolution | Up to 10 Hz |
| Optical Path Length | 76 m (multipass cell) |
| Wavelength Region | Mid-IR (e.g., 2200 cm⁻¹ for N₂O/CO |
| Response Time (1/e) | <0.1 s |
| Operating Temperature | −20 to +50 °C |
| Sample Flow Rate | 0–20 slpm |
| Power Consumption | 250 W (excl. vacuum pump) |
| Dimensions | 440 mm × 660 mm × 267 mm (6U rack-mountable) |
| Weight | 35 kg (main unit) + 15 kg (TE cooler) |
| Data Interfaces | RS-232, USB, Ethernet |
| Software | TDLWintel v5.x (real-time control, automated valve sequencing, background subtraction, GLP-compliant audit trail) |
| Brand | Anasys |
|---|---|
| Origin | USA |
| Model | SMEC300 |
| Measurement Principles | Capacitive Volumetric Water Content (VWC), Four-Point Graphite Electrode EC, Precision Thermistor |
| Output | Analog Voltage (Time-Division Multiplexed) |
| VWC Range | 0–Saturation |
| VWC Resolution | 0.1% |
| VWC Accuracy | ±3% |
| EC Range | 0–10 mS/cm |
| EC Resolution | 0.01 mS/cm |
| EC Accuracy | ±2% |
| Temperature Range | −18 to +50 °C |
| Temp Resolution | 0.1 °C |
| Temp Accuracy | ±0.8 °C |
| Sensing Volume | 6 cm × 2 cm |
| Cable Options | 1.8 m, 6 m, extendable to 15 m |
| Power | 3 V DC @ 6–10 mA |
| Brand | Apogee |
|---|---|
| Origin | USA |
| Model | MO-200 |
| Measurement Principle | Galvanic Electrochemical Cell (Pb/Au, Teflon Membrane) |
| O₂ Range | 5–100 % vol |
| Repeatability | ±0.1 % at 20.9 % O₂ |
| Nonlinearity | <1 % FS |
| Response Time (t₉₀) | 14 s |
| Operating Temp. | 0–50 °C, RH <90 %, 60–150 kPa |
| Interference | Immune to CO₂, CO, NO, NO₂, H₂S, H₂, CH₄ |
| Probe Diameter | 32 mm, Length: 68 mm |
| Diffusion Cap (A0-001) | Ø35 mm × 35 mm |
| Flow-Through Cap (A0-002) | Ø32 mm × 91 mm |
| Cable Length | 2 m |
| Data Logger | 99 manual entries, 99 × 30-min averages, 99 daily means |
| Logger Dimensions | 126 × 70 × 24 mm |
| Integrated Temperature Sensor | Yes |
| Housing Material | Chemically resistant polymer (acid-stable) |
| Heating Function | On-sensor membrane heater for condensation mitigation |
| Brand | Apogee |
|---|---|
| Origin | USA |
| Model | SO-110, SO-120, SO-210, SO-220 |
| Measurement Range | 0–100 % O₂ |
| Output Sensitivity | 2.6 mV/%O₂ (SO-110/SO-210), 0.6 mV/%O₂ (SO-120/SO-220) |
| Output at 20.95 %O₂ | 6 mV (SO-110), 3 mV (SO-120), 55 mV (SO-210), 12.5 mV (SO-220) |
| Repeatability | ±0.001 %O₂ |
| Nonlinearity | <0.01 %O₂ |
| Long-term Drift | 1 mV/year (SO-110/SO-210), 0.8 mV/year (SO-120/SO-220) |
| Response Time (t₉₀) | 60 s (SO-110/SO-120), 14 s (SO-210/SO-220) |
| Operating Temperature | –20 to +60 °C |
| Relative Humidity Range | 0–100 % RH |
| Pressure Range | 60–140 kPa |
| Supply Voltage | 12 V DC (with heater), 2.5 V DC (for thermistor excitation) |
| Heater Current | 6.2 mA |
| Thermistor Excitation Current | 0.1 mA |
| Sensor Dimensions | 32 mm Ø × 68 mm L |
| Diffusion Probe (optional) | 35 mm Ø × 35 mm L, 125-mesh stainless steel screen |
| Flow-through Probe (optional) | 32 mm Ø × 91 mm L, 0.25″ nylon connector |
| Housing Material | Anodized aluminum or polypropylene |
| Internal Temperature Sensor | Yes, for thermal compensation |
| Heating Element | Integrated, prevents membrane condensation |
| Brand | Aquaterr |
|---|---|
| Origin | USA |
| Model | EC-350 |
| Instrument Type | Soil Moisture, Temperature & Electrical Conductivity Analyzer |
| Probe Length | 76.2 cm |
| Probe Diameter | 1.27 cm |
| Probe Material | Aerospace-Grade Stainless Steel & Aluminum |
| Total Unit Length | 91.44 cm |
| Moisture Range | 0–100% (v/v) |
| Temperature Range | 4.44–65.55 °C |
| EC Range | Up to 2000 µS/cm |
| Moisture Sensing Principle | Capacitive Dielectric Measurement |
| Temperature Sensing Principle | Silicon Junction Sensor |
| EC Sensing Principle | Inductive (Non-Contact) Conductivity Measurement |
| Accuracy | ±1.5% FS |
| Power Supply | 9 V Alkaline Battery (≈3 months typical operation) |
| Net Weight | 1.52 kg |
| Shipping Weight | 2.69 kg |
| Packaging Dimensions | 79.4 × 127 × 965.2 mm |
| Brand | Aquaterr |
|---|---|
| Origin | USA |
| Model | M-350 |
| Instrument Type | Capacitance-Based Soil Moisture Analyzer |
| Measurement Range | 0–100% volumetric water content (VWC) |
| Accuracy | ±1.5% VWC |
| Probe Length | 76.2 cm |
| Total Unit Length | 91.44 cm |
| Probe Material | Aerospace-Grade Stainless Steel |
| Power Supply | 9V Alkaline Battery (≈3 months typical operation) |
| Weight | 1.52 kg |
| Sensor Principle | High-Frequency Capacitance (50 MHz) |
| Compliance | Designed for field-deployable GLP-aligned data collection |
| Brand | Aquaterr |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | T-350 |
| Instrument Type | Soil Moisture and Temperature Meter |
| Probe Length | 75 cm |
| Probe Diameter | 1.3 cm |
| Probe Material | Aerospace-Grade Stainless Steel |
| Temperature Range | 0–65 °C |
| Moisture Range | 0–100 % RH (Relative Humidity, soil moisture equivalent) |
| Accuracy | ±1.5 % FS |
| Overall Length | 91.4 cm |
| Weight | 2.3 kg |
| Power Supply | 9 V Battery |
| Packaging Dimensions | 990 × 290 × 120 mm |
| Brand | Archimed |
|---|---|
| Origin | Japan |
| Model | MIJ-03 |
| Principle | Galvanic Oxygen Sensor with Porous Membrane |
| Measurement Range | 0–20.9% O₂ (full scale) |
| Output Signal | 45–65 mV (linear vs. O₂ concentration) |
| Accuracy | ±0.5% O₂ |
| Response Time (t₉₀) | 240 ± 30 s |
| Operating Temperature | 0–40 °C (extended range –10 to +60 °C with integrated thermistor compensation) |
| Storage Temperature | –20 to +60 °C |
| Sensor Body Material | Rigid thermoplastic housing |
| Dimensions | Ø40 mm × 78 mm (sensor head) |
| Cable Length | ~5 m (shielded, color-coded: red/+ , black/–) |
| Weight | ~220 g (including cable) |
| Temperature Compensation | Built-in NTC thermistor |
| Pressure Compensation | Internal air bubble reference |
| Humidity Effect | Negligible at 0% RH |
| Zero Output | 0 mV at 0% O₂ |
| Compliance | Designed for long-term in situ deployment per ISO 11274 (soil physical properties), compatible with GLP-aligned data acquisition systems |
| Brand | AZ (Beijing Aozuo) |
|---|---|
| Origin | Germany |
| Manufacturer Type | Manufacturer |
| Origin Category | Imported |
| Model | ENVIdata-SFL |
| Instrument Type | Soil Moisture / Matric Potential Analyzer |
| Brand | AZ (Beijing Aozuo) |
|---|---|
| Origin | Germany |
| Manufacturer | Yes |
| Country of Origin | Imported |
| Model | AZ-S0210 |
| Instrument Type | Contaminant Transport Analyzer |
| Key Parameters | In-situ multi-depth soil water content, matric potential, temperature, and pore-water solute extraction (NO₂⁻, NO₃⁻+NO₂⁻, PO₄³⁻, SiO₄⁴⁻, NH₄⁺, Ca²⁺, Cl⁻, Fe²⁺/³⁺, total P, total N, SO₄²⁻, alkalinity, hardness, Cr(VI), CN⁻, N₂H₄, volatile phenols) |
| Sampling Frequency | Configurable from 1 s to 24 h per sensor channel |
| Sensor Depth Resolution | Field-scale intact monoliths (1 m Ø × 2 m depth) with sensors at 30, 60, 120, 180 cm |
| Brand | AZ (Beijing Aozuo) |
|---|---|
| Origin | Beijing, China |
| Manufacturer | AZ Instrument Co., Ltd. |
| Model | AZ-SF-1 |
| Instrument Type | Multiparameter Open-Channel Flow Monitoring System |
| Ultrasonic Water Level Sensor Range | 0–400 mm |
| Resolution | 0.1 mm |
| Accuracy | ±1% FS |
| Temperature Compensation | Built-in |
| Weir Dimensions | 1000 mm (L) × 600 mm (W) × 400 mm (H), 304 Stainless Steel |
| Data Logger | 6 single-ended / 4 differential analog inputs, 8 pulse channels, SDI-12, RS232, USB, Ethernet |
| sampling interval | 10 ms to 24 h |
| operating temperature | −45 °C to +70 °C |
| Rain Gauge | Resolution 0.2 mm, accuracy ±1.0%, orifice diameter 154 mm |
| Power Supply | 10–30 VDC, solar-battery hybrid compatible |
| Communication | GPRS, USB, RS232, Ethernet |
| Brand | EXPEC (Puyu Technology) |
|---|---|
| Origin | Zhejiang, China |
| Model | EXPEC 4720 |
| Instrument Type | Heavy Metal Contaminant Analyzer for Soil |
| Detection Principle | Energy-Dispersive X-ray Fluorescence (EDXRF) |
| Weight (incl. battery) | 1.5 kg |
| Operating Temperature Range | −10 °C to 50 °C |
| Ingress Protection Rating | IP54 |
| Detection Speed | ~10 s per measurement |
| Detection Limit | Sub-ppm to ppm level for key heavy metals (e.g., Pb, As, Cd, Cr, Hg, Ni, Cu, Zn) |
| Sample Preparation | None required (direct in-situ analysis) |
| Software Platform | Android-based embedded OS with customizable environmental enforcement modules |
| Moisture Compensation | Integrated real-time soil moisture correction algorithm |
| Elemental Coverage | ≥40 elements including heavy metals and regulated toxic elements |
| Brand | Jingcheng Huatai |
|---|---|
| Origin | Beijing, China |
| Model | HTYF-DT1-A |
| Operating System | Android 8.1 |
| Display | 7-inch capacitive touchscreen |
| Detection Channels | 6 |
| Wavelength Range | 420–680 nm (±2 nm per band) |
| Optical Path | 1 cm cuvette |
| Repeatability Error | ≤0.02% (K₂Cr₂O₇ solution) |
| Stability | Drift ≤0.3% in 60 min (transmittance), ≤0.001 absorbance unit in 60 min |
| Linearity Error | ≤0.1% (CuSO₄) |
| Sensor Output | Simultaneous in-situ measurement of 33 parameters including pH, EC, moisture, temperature, CEC, and elemental concentrations (N, P, K, Ca, Mg, S, Fe, Mn, B, Zn, Cu, Cl, Si, Mo, Se, Pb, As, Cd, Cr, Hg, Ni, Al, Ti, F) |
| Power Supply | AC 220 V ±10% / DC 12 V (internal Li-ion battery) |
| Power Consumption | ≤10 W |
| Data Storage | 4 GB internal memory |
| Connectivity | USB, Ethernet, 4G LTE, Wi-Fi |
| Compliance | Designed to support ISO 11260, ISO 14253-1, ASTM D5088, and GLP-aligned data integrity workflows |
| Brand | Ju Chuang Environmental |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | JC-ZP01S |
| Instrument Type | Multi-Nutrient Fertilizer & Soil Analyzer |
| Detection Range | N: 5–500 mg/kg, P: 2–200 mg/kg, K: 10–600 mg/kg |
| Detection Capability | Simultaneous quantification of nitrogen (N), phosphorus (P), and potassium (K) in soil and fertilizer samples |
| Display | 5.1-inch backlit LCD with Chinese character interface |
| Power Supply | AC 220 ± 22 V / DC 7.5 V (optional built-in rechargeable Li-ion battery) |
| Power Consumption | ≤6 W |
| Repeatability Error | ≤0.5% |
| Linearity Error | ≤3% |
| Optical Sensitivity | Red light ≥4.5 × 10⁻⁵, Blue light ≥3.17 × 10⁻³ |
| Wavelength Accuracy | Red: 620 ± 4 nm, Blue: 440 ± 4 nm |
| Data Storage | ≥1,000 test records with timestamp, sample ID, crop type, yield target, and recommended application rate |
| Output | Built-in thermal printer for on-site report generation (test parameters, date/time, crop-specific fertilizer recommendations, dosage in kg/ha) |
| Sample Throughput | Single soil NPK analysis ≤15 min |
| Operating Environment | Field-deployable portable design |
| Control System | Embedded microcomputer with touch-sensitive keypad interface |
| Compliance | Designed for routine agricultural laboratory and extension service use |
| 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 | Peiou |
|---|---|
| Origin | Shanghai, China |
| Model | SKD-3600 |
| Instrument Type | Multi-Function Soil Analyzer |
| Measurement Principle | Distillation–Acid–Base Titration with Colorimetric Endpoint Detection |
| Nitrogen Determination Range | 0.1–240 mg N (equivalent to 0.07–140 cmol<sub>c</sub>/kg soil) |
| Precision | RSD < 0.5% |
| Recovery Rate | >99.5% |
| Titration Resolution | 0.8 µL/step (intelligently adjusted per standard acid concentration) |
| Steam Flow Control | Adjustable (15–30 mL/min) |
| Distillation Time | 3–8 min/sample (configurable up to 30 min) |
| Data Storage Capacity | 1,000,000 test records |
| Safety Features | Dual-level water level monitoring, real-time steam chamber temperature sensing, coolant flow/pressure monitoring, safety door & digestion tube presence detection |
| Compliance Support | Designed for GLP-compliant workflows |
| Brand | RenKe |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | RS-PH-N01 |
| Instrument Type | Soil Moisture & pH Analyzer |
| Power Supply | DC 5–30 V |
| Power Consumption | 0.5 W (at 24 V DC) |
| Measurement Range | 3–9 pH |
| Resolution | 0.1 pH |
| Accuracy | ±0.3 pH |
| Operating Temperature | −20 °C to +60 °C |
| Long-Term Stability | ≤5 %/year |
| Response Time | ≤10 s |
| Protection Rating | IP68 |
| Probe Material | Corrosion-Resistant Alloy Electrode |
| Encapsulation Material | Black Flame-Retardant Epoxy Resin |
| Dimensions | 45 × 15 × 123 mm |
| Output Signal | RS485 (Modbus-RTU Protocol) |
| Brand | RenKe |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | RS-WS-N01-TR |
| Instrument Type | Soil Moisture Meter |
| Power Supply | 3.6–30 V DC |
| Power Consumption | 0.4 W |
| Temperature Range | −40 °C to +80 °C |
| Temperature Accuracy | ±0.5 °C |
| Moisture Accuracy | ±3% (v/v) |
| Output Signal | RS-485 (Modbus RTU) |
| Probe Length | 70 mm |
| Probe Diameter | 3 mm |
| Probe Material | 304 Stainless Steel |
| Encapsulation | Vacuum-filled Epoxy Resin (Black Flame-Retardant) |
| Cable Length | 2 m (RVV 4×0.3 mm²) |
| IP Rating | IP68 |
| Storage Temperature | −40 °C to +80 °C |
| Soil Salinity Tolerance | Low Sensitivity |