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| Brand | WALZ |
|---|---|
| Origin | Germany |
| Model | GFS-3000 |
| CO₂ Analyzer Range | 0–5000 ppm (resolution: 0.01 ppm) |
| H₂O Analyzer Range | 0–75,000 ppm (resolution: 0.01 ppm) |
| CO₂ Noise (absolute mode) | < 0.2 µmol mol⁻¹ |
| H₂O Noise (absolute mode) | < 30 µmol mol⁻¹ |
| Pressure Range | 60–110 kPa (accuracy: ±0.1%) |
| Flow Rate | 0–1500 µmol s⁻¹ (accuracy: ±1%) |
| PAR Sensors | 3-channel (ambient, leaf adaxial, leaf abaxial) |
| range | 0–2500 µmol m⁻² s⁻¹ |
| LED Light Source | Red (650 nm, 92%) + Blue (470 nm, 8%) |
| Leaf Area Options | 1–12.5 cm² (standard: 8 cm²) |
| Leaf Chamber Volume | 40 mL |
| Operating Temperature | −5 °C to +45 °C |
| Leaf Temperature Measurement | −10 °C to +50 °C (±0.2 °C) |
| Chamber Temperature Control | 3 modes (ambient-following, fixed chamber temp, fixed leaf temp) |
| range | −10 °C to +50 °C |
| Power Supply | 14.4 V / 6.7 Ah rechargeable eSMART battery (96 Wh) |
| Max Power Consumption | 5 W |
| Brand | Zealquest AI Netherlands |
|---|---|
| Origin | Netherlands |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | PTM-NG26 |
| Pricing | Upon Request |
| Brand | Zealquest AI Netherlands |
|---|---|
| Origin | Netherlands |
| Model | PLS-10R |
| Measurement Mode | Automated Continuous Monitoring |
| Leaf Chamber Type | Motorized Auto-Opening/Closing |
| Number of Chambers | Multi-channel (Configurable) |
| Chamber Area | 10 cm² (Circular, Rectangular Optional) |
| Operating Temperature | 5–50 °C |
| IP Rating | IP53 |
| Communication | Wireless (IEEE 802.15.4 / LoRaWAN compatible) |
| Data Logging Interval | Configurable from 1 s to 24 h |
| Supported External Sensors | PAR (0–2000 µmol·m⁻²·s⁻¹), Air Temp/RH, Leaf Temp (±0.15 °C), Stem Diameter Change (0.002 mm resolution), Fruit Growth (0.019–0.065 mm resolution), Sap Flow, Soil Moisture/Temperature/EC, Total Solar Radiation |
| Brand | Zealquest |
|---|---|
| Origin | UK (ADC BioScientific) |
| Model | LCi T |
| CO₂ Range | 0–2000 ppm (1 ppm res.) |
| H₂O Range | 0–75 mbar (0.1 mbar res.) |
| PAR Range | 0–3000 µmol·m⁻²·s⁻¹ |
| Leaf/Chamber Temp | −5 to 50 °C (±0.2 °C) |
| Flow Control | 68–340 µmol·s⁻¹ |
| Display | WQVGA color touch LCD |
| Data Storage | SD card (up to 32 GB) |
| Battery | 12 V / 2.8 Ah lead-acid (≈10 h operation) |
| Dimensions (main unit) | 240 × 125 × 140 mm |
| Weight (main unit) | 2.4 kg |
| GPS | Integrated |
| Compliance | ASTM E2912, ISO 17025-aligned measurement architecture, GLP-compliant data logging with timestamped audit trail |
| Brand | WALZ |
|---|---|
| Origin | Germany |
| Model | MINI-PAM-II |
| Measurement Light | Blue LED (470 nm) or Red LED (655 nm), 0.05 µmol·m⁻²·s⁻¹ |
| Actinic Light | Blue or Red LED, up to 3000 µmol·m⁻²·s⁻¹ continuous |
| Saturation Pulse | Blue or Red LED, up to 6000 µmol·m⁻²·s⁻¹ flash |
| Far-Red Light | Peak emission at 740 nm |
| Detection | PIN photodiode with long-pass/short-pass filters and lock-in amplifier |
| Data Storage | 8 MB SD card (≈27,000 datasets) |
| PAR Range | 0–7000 µmol·m⁻²·s⁻¹ |
| Leaf Temperature Range | −20 to +60 °C |
| Relative Humidity Range | 0–100 %RH |
| Power Supply | 6 × AA rechargeable batteries (1.2 V / 2 Ah), supports ≥1000 saturation pulses per charge |
| Measured Parameters | Fo, Fm, F, Fm′, Fo′, Fv/Fm, Y(II) [ΔF/Fm′], qP, qL, qN, NPQ, Y(NPQ), Y(NO), rETR, PAR, leaf temperature, relative humidity |
| Sample Interface | 2035-B leaf clip (1 cm² measurement area, 60° fiber angle, 8 mm working distance) with integrated temperature and humidity sensors |
| Brand | CID Inc. (USA) |
|---|---|
| Origin | USA |
| Model | CI-340 |
| CO₂ Range | 0–2000 ppm (standard), 0–3000 ppm (optional) |
| PAR Range | 0–2500 µmol·m⁻²·s⁻¹ |
| Flow Rate | 100–1000 mL/min |
| Operating Temp | 0–45 °C |
| Operating RH | 5–95% RH (non-condensing) |
| Battery Life | 4–6 h (standard operation), up to 10 h with low-power configuration |
| Weight | 1.5 kg (with leaf chamber & Li-ion battery) |
| Data Storage | 4 MB flash memory (~1.6 million data points) |
| Display | 40×6-character LCD (320×64 pixels) |
| Interface | USB |
| CO₂ Sensor | NDIR, 1 Hz chopper frequency, <2% accuracy, 0.1 ppm resolution |
| Humidity Sensor | Capacitive, 0–2100% RH, ±2% RH @10% RH, ±3.5% RH @90% RH |
| PAR Sensor | GaAsP photodiode with cosine correction, 400–700 nm, ±5 µmol·m⁻²·s⁻¹ accuracy |
| Air Temp Sensor | Thermocouple, –15–50 °C, ±0.1 °C |
| Leaf Temp Sensor | Non-contact infrared, –10–50 °C, ±0.3 °C |
| Brand | Zealquest |
|---|---|
| Origin | Israel (manufactured by OLAN Ltd.) |
| Model | PTM-50 |
| CO₂ Measurement Range | 0–1000 ppm |
| CO₂ Exchange Range | −70 to +70 µmol CO₂·m⁻²·s⁻¹ |
| H₂O Exchange & Transpiration | Continuous |
| Leaf Chamber Type | Automated Opening/Closing |
| Number of Chambers | Configurable (2, 3, or 4) |
| Chamber Area | 10 cm² |
| Measurement Cycle Time | 20 s per chamber |
| Sampling Interval | 5–120 min (user-defined) |
| Airflow Control | 0.25–0.5 LPM (adaptive) |
| PAR Sensor Range (RTH-50) | 0–2000 µmol·m⁻²·s⁻¹ |
| Operating Temperature | 10–40 °C |
| IP Rating | IP55 |
| Communication | Integrated 2.4 GHz RF + Optional 3G Module |
| Power Supply | 9–24 VDC |
| Origin | Israel |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported Instrument |
| Model | PTM-50 |
| Price Range | USD 68,000 – 136,000 |
| CO₂ Measurement Range | 0–1000 ppm |
| CO₂ Exchange Range | −70 to +70 µmol CO₂·m⁻²·s⁻¹ |
| H₂O Exchange Measurement | Integrated Air Temperature & Relative Humidity Sensor |
| Leaf Chamber Area | 10 cm² |
| Chamber Cycling Time | 20 s |
| Sampling Interval | 5–120 min (user-configurable) |
| Airflow Control | 0.25–0.5 LPM (adaptive) |
| Power Supply | 9–24 VDC |
| Communication | Built-in 2.4 GHz RF Transmitter + USB RF Receiver |
| Operating Temperature | 10–40 °C |
| IP Rating | IP55 |
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