Environmental Monitoring Instruments
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Showing 5251–5280 of 9112 results
| Brand | LESHI |
|---|---|
| Origin | Beijing, China |
| Model | SE330 |
| Instrument Type | Portable |
| Gas Targets | CO₂, CO, O₂ |
| Detection Principle | NDIR (CO₂), Electrochemical (CO & O₂) |
| Measurement Range | CO₂: 0–2000 ppm (standard), CO: 0–2000 ppm / 0–4.00% (dual-range), O₂: 0–25% vol |
| Sensor Lifespan | CO & O₂ sensors: 3–4 years |
| CO₂ NDIR detector | indefinite under contamination-free operation |
| Display | Backlit LCD touchscreen |
| Built-in Components | Sampling pump, particulate filter, flow meter, condensate removal system |
| Probe | Stainless-steel probe with flexible sampling hose |
| Compliance Context | Designed for field-deployable compliance with occupational hygiene standards (e.g., OSHA PELs, ACGIH TLVs), indoor air quality protocols (ISO 16000 series), and combustion efficiency assessment per EN 15316-4-2 and ASTM D7549 |
| Brand | Leshi |
|---|---|
| Model | SE350 |
| Type | Portable Gas Analyzer |
| Detection Principles | NDIR (CO, CO₂), Electrochemical (O₂), TCD (H₂, optional) |
| Gas Channels | Up to 4 simultaneous gases (configurable: CO, CO₂, O₂, CH₄, H₂) |
| Power Supply | Rechargeable Li-ion battery + AC adapter |
| Sampling System | Integrated diaphragm pump, flow meter, particulate filter, and sample line |
| Enclosure | IP65-rated ruggedized stainless-steel housing (chemically resistant grade) |
| Display | Backlit LCD with real-time concentration readouts |
| Output Options | 4–20 mA analog output, RS232/USB data interface, optional data logger |
| Compliance | Designed for industrial field use per IEC 61000-6-2/6-4 (EMC), ATEX Zone 2 / IECEx nA IIC T4 Ga (optional certification variant) |
| Operating Temperature | −10 °C to +50 °C |
| Storage Temperature | −20 °C to +60 °C |
| Relative Humidity | 0–95 % RH (non-condensing) |
| Brand | LESHI |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Soil GHG Analyzer |
| Price Range | USD 210,000 – 350,000 |
| Channel Capacity | 24 independent sampling ports |
| Operating Temperature | Ambient (10–35 °C) |
| Target Gases | N₂O, CH₄, CO₂, CO, C₁–C₆ hydrocarbons, aromatic & cyclic hydrocarbons, carboxylic acids & derivatives, aldehydes, ketones |
| Measurement Mode | Real-time, sequential multi-point gas chromatography with integrated thermal desorption and PID/FID detection modules |
| Brand | Leshi |
|---|---|
| Origin | USA |
| Model | THY-FDM |
| Detection Principle | Photoionization Detection (PID) |
| Instrument Type | Online Continuous Monitoring Detector |
| Configuration | Total Volatile Organic Compounds (TVOC) Analyzer |
| Detection Ranges | 0–10 ppm, 0–100 ppm, 0–1000 ppm, 0–10000 ppm (selectable full-scale) |
| Resolution | 0.01 ppm (at 0–10 ppm range), 0.1 ppm (at 0–100 ppm), 1 ppm (at 0–1000 ppm), 10 ppm (at 0–10000 ppm) |
| Accuracy | ±5% of Full Scale (FS) |
| Repeatability | ±5% FS |
| Response Time | T90 ≤ 30 seconds |
| Operating Temperature | −30 °C to +50 °C |
| Operating Humidity | 10–95% RH (non-condensing) |
| Atmospheric Pressure Range | 86–115 kPa |
| Power Supply | 24 VDC (18–28 VDC), current draw ≤ 100 mA |
| Power Consumption | <2.5 W |
| Enclosure Material | Die-cast aluminum with epoxy-polyester powder coating |
| Ingress Protection | IP66 |
| Explosion Protection | Ex d IIC T6 Gb |
| Dimensions (L×W×H) | 144 mm × 99 mm × 108.5 mm |
| Weight | 1.4 kg |
| Installation Options | Wall-mount, pipe-insertion, or gas-injection mounting |
| Output Signals | 4–20 mA (3-wire), RS-485 Modbus RTU (4-wire) |
| Cable Specifications | RVVP 3×1.0 mm² (4–20 mA), RVVP 4×1.0 mm² (RS-485) |
| Maximum Signal Transmission Distance | ≤ 1000 m |
| Sensor Lifetime | 2–3 years |
| Compatibility | Integrates with third-party DCS, PLC, and analog-input gas alarm controllers |
| Origin | Germany |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | LGM 4POINT |
| Pricing | Upon Request |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 907-0036, 911-0036 |
| Price | Upon Request |
| Brand | LGR |
|---|---|
| Origin | USA |
| Model | DLT-100 (Benchtop), RMT-200 (Portable) |
| Detection Principle | Off-Axis Integrated Cavity Output Spectroscopy (Off-Axis ICOS) |
| Measurement Range | 0.3–25 ppm CH₄ |
| Precision | 1 ppb @ 1 Hz (ambient conditions) |
| Response Time | <0.05 s (with external pump), 25 s (internal pump) |
| Accuracy | Better than ±1% of reading |
| Operating Temperature | 0–50 °C |
| Relative Humidity | <98% RH, non-condensing |
| Data Output | RS-232, Analog (0–10 V / 4–20 mA), Ethernet |
| Data Storage | Internal 20 GB HDD + 12.1" color TFT display |
| Power | 115/230 V AC, 50/60 Hz, 80 W (excl. optional external pump) |
| Dimensions (Benchtop) | 25.4 × 96.5 × 35.56 cm |
| Dimensions (Portable) | 22.2 × 48.26 × 60.9 cm |
| Weight | 27 kg |
| Compliance | Designed for field-deployable, unattended operation |
| Brand | LGR |
|---|---|
| Origin | USA |
| Model Numbers | 907-0001, 908-0001, 911-0001 |
| Measurement Principle | Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) |
| CH₄ Range (standard) | 0.1–100 ppm |
| CH₄ Range (extended) | up to 1000 ppm or 0–10% vol |
| H₂O Range | 7000–70000 ppm (0–100% RH) |
| Precision (1σ, 1 s) | CH₄: 1 ppb, H₂O: 100 ppm |
| Precision (1σ, 100 s) | CH₄: 0.3 ppb, H₂O: 30 ppm |
| Drift (24 h, EP model) | CH₄: 0.8 ppb, H₂O: max(100 ppm, 1% of reading) |
| Accuracy (uncalibrated) | <1% (standard), <0.03% (EP) |
| Sampling Rate | 0.01–20 Hz |
| Operating Temperature | 5–45 °C (standard), 0–45 °C (EP) |
| Power | 80 W (standard), 150 W (EP) |
| Dimensions & Weight | varies by configuration (e.g., rack-mount EP: 35.6 × 48.3 × 61 cm, 40 kg) |
| Brand | LGR |
|---|---|
| Origin | USA |
| Model | FGGA |
| Type | Off-Axis Integrated Cavity Output Spectroscopy (Off-Axis ICOS) Analyzer |
| Detection Targets | CH₄, CO₂, H₂O |
| Repeatability | CH₄ ≤ 1 ppbv, CO₂ ≤ 0.2 ppmv, H₂O ≤ 100 ppmv |
| Response Time | 0.1 s (with external DSVP pump), 25 s (with internal pump) |
| Mirror Reflectivity | >99.999% |
| Accuracy | <1% of reading |
| Measurement Ranges | CH₄: 0.1–10,000 ppmv (standard), down to 0.005 ppmv (optional) |
| CO₂ | 200–20,000 ppmv (standard), up to 20,000 ppmv (optional) |
| H₂O | 7,000–80,000 ppmv (standard), 1,500–80,000 ppmv (optional) |
| Effective Optical Path Length | ~2.5 km (typical, based on 25 cm cavity with 99.999% mirrors) |
| Data Storage | 40 GB internal SSD |
| Display | 12.1" color TFT (desktop only) |
| Sample Temperature Range | 0 °C |
| Operating Temperature | 5–40 °C |
| Operating Humidity | 0–98% RH (non-condensing) |
| Gas Inlet Fittings | 1/4", 3/8", or 1/2" Swagelok® |
| Power | 115/230 VAC, 50/60 Hz, 90 W (DC conversion supported) |
| Dimensions (Desktop) | 25 × 96 × 35 cm |
| Dimensions (Portable) | 22 × 48 × 61 cm |
| Weight | 30 kg (desktop), ~18 kg (portable) |
| Origin | USA |
|---|---|
| Manufacturer | Los Gatos Research |
| Type | OA-ICOS-based Ambient NO₂ Monitor |
| Models | 907-0009 (Rack-Mount Standard), 908-0009 (Benchtop Standard), 911-0009 (Enhanced Performance Rack-Mount) |
| Detection Limit | 0.05 ppb (1σ, 60 s) |
| Precision | 50 ppt (1σ, 1 s) |
| Response Time (Cavity Flush) | 10 s (Internal Pump) / 1 s (Optional External Vacuum Pump) |
| Drift | ≤50 ppt (24 h, EP model, STP, 15-min avg) |
| Measurement Range | 0.01–1000 ppb (full-spec) |
| Optional Extended Range | 0–3000 ppb |
| Linearity | Full-scale linear |
| Zero Calibration | Auto-zero via metal oxide scrubber (no zero gas required) |
| Sample Temp. | 0–50 °C |
| Operating Temp. | 5–45 °C |
| Humidity | 0–100% RH (non-condensing) |
| Power | 115/230 VAC, 50/60 Hz, 100 W (Std) / 150 W (EP) |
| Dimensions & Weight | Benchtop Std: 25.4 × 96.5 × 35.6 cm, 27 kg |
| Rack Std | 22.2 × 48.3 × 61 cm, 27 kg |
| Rack EP | 35.6 × 48.3 × 61 cm, 40 kg |
| Outputs | RS-232, Analog (0–10 V / 4–20 mA), Ethernet, USB |
| Internal Data Storage | Linux-based embedded computer with HDD logging |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model Numbers | 907-0028, 914-0028 |
| Pricing | Upon Request |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Models | 907-0037 (Standard Rackmount), 911-0037 (Enhanced Precision), 915-0037 (Ultra-Portable) |
| Repeatability (1σ) | 2 ppb (1 s), 0.2 ppb (100 s) |
| Max Drift (EP, 15-min avg, STP, 24 h) | 1 ppb |
| Measurement Range (full spec compliance) | 0.2–2000 ppb |
| Optional Range | 0–30 ppm |
| Measurement Rate | 0.01–1 Hz (flow response <10 s requires optional external pump) |
| Sample Temp | 0–50 °C |
| Operating Temp | 0–45 °C |
| Humidity | 0–100% RH (non-condensing) |
| Outputs | RS-232, Analog, Ethernet, USB |
| Power | 115/230 VAC, 50/60 Hz or 12 VDC |
| Power Consumption | 100 W (Standard), 150 W (EP), 70 W (Ultra-Portable) |
| Dimensions & Weight | Standard: 22.2 × 48.3 × 61 cm, 29 kg |
| EP | 35.6 × 48.3 × 61 cm, 40 kg |
| Ultra-Portable | 17.8 × 47 × 35.6 cm, 19 kg |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Models | 908-0016 (Benchtop), 907-0016 (Rackmount Standard), 911-0016 (Rackmount EP), 915-0016 (Ultra-Portable) |
| Power | 115/230 VAC, 50/60 Hz, 120 W (Standard) / 150 W (EP) |
| Dimensions & Weight | Benchtop: 25.4 × 96.5 × 35.6 cm, 29.5 kg |
| Rackmount Standard | 22.2 × 48.3 × 61 cm, 29.5 kg |
| Rackmount EP | 35.6 × 48.3 × 61 cm, 40.5 kg |
| Ultra-Portable | 17.8 × 47 × 35.6 cm, 19 kg |
| Measurement Range (NH₃) | 1–10,000 ppb (full-spec) |
| H₂O Range | 0–60,000 ppm (non-condensing) |
| Precision (1σ) | 0.6 ppb (10 s), 0.2 ppb (100 s), 0.12 ppb (300 s) |
| Max Drift (EP, 24 h, STP) | 0.2 ppb |
| Temp. Control Stability (EP) | ±0.003 °C |
| Pressure Control Stability (EP) | ±0.001 torr |
| Sampling Rate | 0.01–1 Hz (user-selectable) |
| Operating Temp. | 5–45 °C (Standard), 0–45 °C (EP) |
| Sample Temp. | 0–50 °C |
| Humidity | 0–100% RH (non-condensing) |
| Outputs | RS-232, Analog, Ethernet, USB |
| Detection Principle | Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 915-0011 |
| Response Time | 1 s |
| Repeatability | CH₄ < 0.25 ppb (100 s), CO₂ < 40 ppb (100 s), H₂O < 15 ppm (100 s) |
| Measurement Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| Form Factor | Portable |
| Power Consumption | 60 W (DC), 66 W (AC) |
| Dimensions | 17.8 cm H × 47 cm W × 35.6 cm D |
| Weight | 15 kg |
| Operating Temperature | 5–45 °C |
| Sample Temperature Range | −10–50 °C |
| Relative Humidity | 0–100% RH (non-condensing) |
| Detection Limits (1σ, 100 s) | CH₄: 0.25 ppb, CO₂: 40 ppb, H₂O: 15 ppm |
| Full-Scale Linear Range | CH₄: 0.01–100 ppm (extendable to 10% vol), CO₂: 1–20,000 ppm, H₂O: 500–70,000 ppm (0–100% RH) |
| Data Output | RS-232, Analog, Ethernet, USB |
| Accuracy | <1% uncertainty (uncalibrated, 10–35 °C) |
| Sampling Rate | 0.01–1 Hz |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | LH-270 |
| Pricing | Available Upon Request |
| Dust Sampling Flow Rate | 10–100 L/min (0.1 L/min resolution, ±2% accuracy) |
| Sampling Duration | 00:00–99:59 h:min (1 min resolution, ±1 s deviation within 20 min) |
| Sampling Cycles | 0–99 programmable |
| Pre-sampler Temperature | −30 to 99 °C (0.1 °C resolution, ±1.0 °C accuracy) |
| Pre-sampler Pressure | −30 to 0 kPa (0.01 kPa resolution, ±2.5% accuracy) |
| Ambient Atmospheric Pressure | 50–130 kPa (0.01 kPa resolution, ±500 Pa accuracy) |
| Built-in Heater Range | 15–30 °C (0.1 °C resolution, ±2.0 °C accuracy) |
| Load Capacity | ≥20 kPa at 50 L/min (flow stability ≤2% over 6 h) |
| Inlet Cut-point | Da₅₀ = (100 ± 1) µm, geometric standard deviation δg = 1.5 |
| Inlet Velocity | 0.3 m/s |
| Effective Filter Diameter | Φ80 mm |
| Inlet Thread | M27×1.5 |
| Inlet Width Tolerance | ≤±2.0% |
| Origin | Canada |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | LH-3S |
| Instrument Type | Portable |
| Measurement Ranges | 0–100 mg/L and 0–200 mg/L (user-selectable) |
| Limit of Detection | 0.1 mg/L |
| Response Time | ≤1 s |
| Zero Drift | ±0.1 mg/L (24 h) |
| Resolution | 0.1 mg/L |
| Principle | Dual-Wavelength UV Absorption (254 nm & 365 nm) |
| Dimensions | 120 × 260 × 206 mm |
| Brand | Lianhua Technology |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Benchtop Laboratory Analyzer |
| Accuracy/Precision | ±10% |
| Optical Resolution | 0.001 Absorbance Unit (Abs) |
| Compliance | Designed for ASTM D3559, ISO 8466-1, and EPA Method 200.7–compatible workflows |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | 6800-09 |
| Internal Chamber Volume | 4244.1 cm³ |
| IRGA Cell Volume | 57 cm³ |
| Sampling Area | 317.8 cm² (49.3 in²) |
| Air Temperature Sensor (Thermistor) | Range: −20 to 45 °C, Accuracy: ±0.5 °C (0–70 °C) |
| Weight | 4.06 kg |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | 8200-01 |
| Chamber Diameter | 20 cm |
| Soil Area | 317.8 cm² |
| Chamber Volume | 4244.1 cm³ |
| Air Temperature Sensor Range | −20 to 70 °C, Accuracy: ±0.5 °C (0–70 °C) |
| Pressure Sensor Range | 50–110 kPa, Accuracy: ±0.4 kPa, Resolution: 1.5 Pa (typ.) |
| Operating Temperature | −20 to 50 °C |
| Power Supply | 10–17 VDC |
| Battery | 4S Li-ion, 98 Wh, built-in protection |
| Battery Life | 34 h (standalone), 20 h (with LI-870 CO₂/H₂O analyzer) |
| Soil Thermocouple Port | compatible with 6000-09TC, cable length: 1.2 or 2 m |
| Weight | 4.3 kg (incl. battery) |
| Onboard Memory | 8 GB (OS + data) |
| GPS Accuracy | 2.5 m CEP |
| Wi-Fi | 2.4 GHz, IEEE 802.11a/b/g/n/ac |
| SDI-12 Interface | for Stevens HydraProbe (optional) |
| Connectivity | USB-A (LI-870), USB-B (non-LI-COR analyzers), RJ-45 Ethernet (LI-COR trace gas analyzers), USB-A (external Wi-Fi adapter) |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | Biomet |
| Instrument Type | Integrated Eddy Covariance-Compatible Biometeorological Sensor System |
| Compliance | Designed for ASTM D7289, ISO 16485, and FLUXNET-compatible data acquisition frameworks |
| Data Synchronization | Time-synchronized with LI-COR gas analyzers (e.g., LI-7200/7810) and ultrasonic anemometers (e.g., LI-7500A/RS) via DAqM module |
| Software Integration | Fully compatible with SmartFlux® and EddyPro® v8.2+ for flux partitioning, gap-filling, and uncertainty propagation |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | EddyPro |
| Type | Eddy Covariance Data Processing Software |
| Compliance | ASTM D618, ISO 14050 (Greenhouse Gas Monitoring Framework), AmeriFlux & GHG-Europe Data Standards |
| Software Architecture | Windows-based desktop application (Local Edition) and embedded real-time firmware (Field Edition for SmartFlux® 2) |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | GHG-RS2 (with SmartFlux® and LI-7500DS/LI-7700) |
| Instrument Type | Eddy Covariance Flux System for Greenhouse Gases |
| Power Consumption | <12 W (system-wide, solar-compatible) |
| Data Output Frequency | Up to 40 Hz |
| Compliance | ASTM D6348, ISO 14064-3, US EPA GHG Reporting Program (Subpart H), FLUXNET Best Practices |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-560 Spherical 3D Ultrasonic Anemometer |
| Instrument Type | Ultrasonic Anemometer |
| Wind Speed Range | 0–50 m/s, Resolution: 0.01 m/s, Accuracy: ±0.1 m/s (0–10 m/s), ±1% of reading (11–30 m/s), ±2% of reading (31–50 m/s) |
| Wind Direction (u/v) | 0–359°, (w): ±60°, Resolution: 1°, Accuracy: ±1° |
| Temperature Range | −20 to +72 °C, Resolution: 0.01 °C, Accuracy: ±2.0 °C |
| 3D Accelerometer Range | ±2 g (u/v/w), Tilt (Pitch/Roll): ±90° |
| Measurement Path Length | 60 mm |
| Dimensions | 10.2 cm × 10.2 cm × 24.9 cm |
| Weight | 225 g |
| Power Supply | 5–32 VDC @ 500 mW |
| Output Interfaces | RS-232, RS-422, 3.3-V UART |
| Data Output Frequencies | 1, 2, 5, 10, 20, 25, 50, 100 Hz |
| Ultrasonic Transducer Frequency | 60 kHz |
| Housing Material | Aerospace-grade aluminum |
| IP Rating | NEMA-4X equivalent (sensor head) |
| DL422 data logger | IP67 |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-710 |
| Operating Temperature | 5–50 °C |
| Relative Humidity Limit | ≤85% RH (non-condensing) |
| Communication Protocol | SDI-12 |
| Input Voltage | 8–33 V DC |
| Power Consumption | ≤1.5 W |
| Weight | 1.4 kg |
| Dimensions | 58 × 17.5 × 7.6 cm |
| Mounting | Compatible with 1" mast and NuRail hardware |
| Minimum Sonic Anemometer Separation | ≥2 m |
| Minimum Installation Height | ≥2 m |
| Ingress Protection | IP54 (IEC 60529) |
| H₂O Mole Fraction Range | 0–60 mmol/mol |
| Sample Flow Rate | 0.3 L/min (typical) |
| Output Parameters | ET (mm), LE (W/m²), H (W/m²), VPD (kPa), Pa (kPa), Ta (°C), RH (%), AH (g/m³), SVP (kPa), Td (°C) |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-7200RS |
| Measurement Principle | Non-Dispersive Infrared (NDIR) Spectroscopy with Thermopile-Cooled PbSe Detectors |
| CO₂ Range | 0–3000 µmol/mol |
| H₂O Range | 0–60 mmol/mol |
| Accuracy | <1% for CO₂, <2% for H₂O |
| Zero Drift (CO₂) | ±0.1 µmol/mol/°C (typ.), ±0.3 µmol/mol/°C (max.) |
| Zero Drift (H₂O) | ±0.03 mmol/mol/°C (typ.), ±0.05 mmol/mol/°C (max.) |
| RMS Noise @5 Hz | 0.08 µmol/mol (CO₂), 0.0034 mmol/mol (H₂O) |
| Bandwidth Options | 5, 10, or 20 Hz |
| Operating Temperature | −25 to +50 °C (extended: −40 to +50 °C) |
| Power | 10.5–30 VDC |
| Data Storage | 16 GB industrial-grade USB flash drive |
| Communication | Ethernet, SDM (>50 Hz), RS-232 (115.2 kbps, ≤20 Hz), 6 DACs (0–5 V, 300 Hz) |
| Analog Inputs | 4 differential, bipolar ±5 V, 300 Hz |
| Detector | Thermoelectrically cooled PbSe photodetector |
| Probe Dimensions | Ø7.5 cm × 31 cm |
| Weight | 1.8 kg |
| Interface Unit (LI-7550) | 35 × 30 × 15 cm |
| Flow Module (7200-101) | 15 LPM, 35 × 30 × 15 cm, 6.15 kg, <16 W |
| Heated/Anti-Condensation Inlet Tube | 71.1 cm length, ID 5.33 mm, OD 6.35 mm, −40 to +50 °C, 0.1–6 W |
| Insulated Inlet Tube | up to 1 m, same ID/OD |
| Auxiliary Sensor (7550-101) | 11.5 × 6.5 × 4.2 cm, 0.39 kg |
| Compliance | Designed for GLP/GMP-aligned eddy covariance deployments |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-7500DS |
| Power Consumption | 4 W (typical), up to 8 W (operational range) |
| CO₂ Measurement Range | 0–3000 µmol/mol |
| H₂O Measurement Range | 0–60 mmol/mol |
| Accuracy | <1% for both CO₂ and H₂O |
| Zero Drift (CO₂) | ±0.1 µmol/mol/°C (typ.), ±0.3 µmol/mol/°C (max.) |
| Zero Drift (H₂O) | ±0.03 mmol/mol/°C (typ.), ±0.05 mmol/mol/°C (max.) |
| RMS Noise @5 Hz (CO₂) | 0.08 µmol/mol |
| RMS Noise @5 Hz (H₂O) | 0.0034 mmol/mol |
| Bandwidth Options | 5, 10, or 20 Hz |
| Sampling Frequency | 150 Hz |
| Detector | Thermoelectrically Cooled PbSe |
| Optical Path Length | 12.5 cm |
| Data Interface | Ethernet |
| Operating Temperature | −25 to +50 °C (extendable to −40 to +50 °C) |
| IP Rating | IP65 |
| Air Temperature Sensor | 10 kΩ thermistor (−40 to +70 °C, ±0.25 °C accuracy) |
| Pressure Sensor | 20–110 kPa (±0.4 kPa accuracy) |
| Probe Dimensions | Ø6.5 × 30 cm |
| Weight | 0.67 kg (probe only), 1.3 kg (with base) |
| DSI Box Dimensions | 13.24 × 14.64 × 6.24 cm (H×W×D) |
| Weight | 0.93 kg |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-7500RS |
| CO₂ Range | 0–3000 µmol/mol |
| H₂O Range | 0–60 mmol/mol |
| Accuracy (CO₂/H₂O) | <1% |
| Zero Drift (CO₂) | ±0.1 µmol/mol/°C (typ.), ±0.3 µmol/mol/°C (max.) |
| Zero Drift (H₂O) | ±0.03 mmol/mol/°C (typ.), ±0.05 mmol/mol/°C (max.) |
| RMS Noise @5 Hz (CO₂) | 0.08 µmol/mol |
| RMS Noise @5 Hz (H₂O) | 0.0034 mmol/mol |
| Gain Drift (CO₂) | ±0.02% /°C (typ.) |
| Gain Drift (H₂O) | ±0.15% /°C (typ.) |
| Cross-Sensitivity (CO₂ to H₂O) | ±2.0×10⁻⁵ mol CO₂/mol H₂O (typ.) |
| Cross-Sensitivity (H₂O to CO₂) | ±0.02 mol H₂O/mol CO₂ (typ.) |
| Sampling Rate | 150 Hz |
| Bandwidth Options | 5, 10, or 20 Hz |
| Detector | Thermoelectrically Cooled PbSe |
| Optical Path Length | 12.5 cm |
| Air Temperature Sensor | 10 kΩ thermistor (–40 to 70 °C |
| Pressure Sensor | 20–110 kPa (±0.4 kPa accuracy) |
| Operating Temp | –25 to 50 °C (extendable to –40 °C) |
| IP Rating | IP65 |
| Power | 10.5–30 VDC |
| Power Consumption | 4 W (typ.), ≤8 W (full range) |
| Probe Dimensions | Ø6.5 × 30 cm |
| Probe Weight | 0.67 kg (1.3 kg with base) |
| DSI Box Dimensions | 13.24 × 14.64 × 6.24 cm (H×W×D) |
| DSI Box Weight | 0.93 kg |
| Data Interface | Ethernet |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-7700-EC |
| Instrument Type | Eddy Covariance Flux Measurement System |
| Gas Species | CH₄, CO₂, H₂O |
| Measurement Principle | Open-Path Infrared Absorption Spectroscopy (CH₄), Dual-Wavelength Near-Infrared Absorption (CO₂/H₂O) |
| Data Output Rate | ≥10 Hz |
| Power Consumption | <12 W (typical system configuration) |
| Operating Temperature Range | −25 to +45 °C |
| Enclosure Rating | IP65 |
| Compliance | Designed for GLP/GMP-aligned environmental monitoring workflows |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-7700 |
| Instrument Type | Online Analyzer |
| Target Gas | Methane (CH₄) |
| Measurement Precision | ±5 ppb |
| Measurement Range | 0–25 µmol/mol at −25 °C |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-7810 |
| Instrument Type | Portable |
| Measurement Principle | Optical Feedback–Cavity Enhanced Absorption Spectroscopy (OF-CEAS) |
| Measurement Frequency | 1 Hz |
| Optical Cavity Volume | 6.41 cm³ |
| Sample Flow Rate | 250 sccm (standard mL/min) |
| Weight | 10.5 kg (including batteries) |
| Dimensions (L×H×W) | 51 × 33 × 18 cm |
| Operating Temperature | −25 °C to +45 °C (non-direct-sunlight ambient) |
| Relative Humidity Range (Operation) | 0–85 % RH (non-condensing, no direct sunlight) |
| Sample Line Humidity Range | 0–99.9 % RH (non-condensing) |
| Pressure Range | 70–110 kPa (high-altitude mode: 50–110 kPa) |
| Connectivity | Ethernet and Wi-Fi (2.4 GHz, IEEE 802.11 a/b/g/n/ac) |
| Power Consumption | 22 W @ 25 °C (steady state) |
| AC Input | 100–240 VAC, 50–60 Hz |
| DC Output | 24 VDC |
| Battery Runtime | ~8 hours with two standard batteries |
| CH₄ Range | 0–100 μmol/mol |
| CH₄ Precision (1σ) | 0.25 ppb (5-sec avg), 0.60 ppb (1-sec avg) |
| CH₄ Drift | <1 ppb per 24 h |
| CO₂ Range | 0–10,000 μmol/mol |
| CO₂ Precision (1σ) | 1.5 μmol/mol (5-sec avg), 3.5 μmol/mol (1-sec avg) |
| H₂O Range | 0–60,000 μmol/mol |
| H₂O Precision (1σ) | 20 μmol/mol (5-sec avg), 45 μmol/mol (1-sec avg) |
| CH₄ T₉₀ Response Time | ≤2 s (0 → 2 μmol/mol) |