Porometers
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| Brand | COMECAUSE |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | IN-GX10 |
| CO₂ Detection Principle | Non-Dispersive Infrared (NDIR) |
| CO₂ Range | 0–5000 ppm |
| CO₂ Sensitivity | ΔCO₂ captured within 1 s |
| CO₂ Accuracy | ±3 ppm |
| CO₂ Resolution | 0.1 ppm |
| O₂ Detection Principle | Electrochemical |
| O₂ Range | 0–100% vol |
| O₂ Linearity | ≤±2% F.S. |
| O₂ Repeatability | ≤±1% |
| O₂ Response Time | 30 s |
| O₂ Zero Drift | ≤±2% F.S./24 h |
| O₂ Span Drift | ≤±2% F.S./24 h |
| Temperature Range | −20 to +95 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.2 °C |
| Humidity Range | 0–100% RH |
| Humidity Resolution | 0.1% RH |
| Humidity Accuracy | ±0.2% F.S. |
| Flow Control | Adjustable via onboard interface |
| Respiratory Chamber Volumes | 0.1 L (Ø40 mm × 80 mm), 0.25 L (Ø60 mm × 89 mm), 2.0 L (Ø120 mm × 180 mm) |
| Display | 7-inch Android-based capacitive touchscreen |
| Onboard Storage | 16 GB (≥100,000 records) |
| Data Export | USB flash drive interface |
| Power Supply | 12 V DC, 3 A adapter |
| Brand | COMECAUSE |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | IN-GX20 |
| Price | USD 3,650 (FOB) |
| CO₂ Detection Principle | Non-Dispersive Infrared (NDIR) |
| CO₂ Range | 0–5000 ppm |
| CO₂ Resolution | 0.1 ppm |
| CO₂ Accuracy | ±3 ppm |
| O₂ Detection Principle | Electrochemical |
| O₂ Range | 0–100% vol |
| O₂ Linearity | ≤±2% F.S. |
| O₂ Repeatability | ≤±1% |
| O₂ Response Time | ≤30 s |
| Temperature Range | −20 to +95 °C |
| Temp. Accuracy | ±0.2 °C |
| Humidity Range | 0–100% RH |
| RH Accuracy | ±0.2% F.S. |
| Power Supply | 12 V DC, 3 A adapter |
| Internal Storage | 16 GB (≥100,000 records) |
| Connectivity | Wi-Fi, 4G LTE, USB 2.0, GPS module |
| Display | 7-inch capacitive touchscreen (Android OS) |
| Respiration Chambers | Three interchangeable volumes (0.1 L, 0.25 L, 2.0 L) |
| [Brand | COMECAUSE |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | IN-GX30 |
| CO₂ Detection Principle | NDIR (Non-Dispersive Infrared) |
| CO₂ Range | 0–5000 ppm |
| CO₂ Accuracy | ±3 ppm |
| CO₂ Resolution | 0.1 ppm |
| O₂ Detection Principle | Electrochemical |
| O₂ Range | 0–100% vol |
| O₂ Linearity | ≤±2% F.S. |
| O₂ Response Time | ≤30 s |
| C₂H₄ Detection Principle | Electrochemical |
| C₂H₄ Range | 0–200 ppm |
| C₂H₄ Sensitivity | 75±35 nA/ppm |
| C₂H₄ Resolution | 1 ppm |
| Temperature Range | −20 to +95 °C |
| Temp. Accuracy | ±0.2 °C |
| Humidity Range | 0–100% RH |
| RH Accuracy | ±0.2% F.S. |
| Display | 7-inch Android-based capacitive touchscreen |
| Data Storage | 16 GB internal (≥100,000 records) |
| Connectivity | Wi-Fi, 4G, USB export, GPS geotagging |
| Power Supply | 12 V / 3 A adapter |
| Respiratory Chamber Options | 0.1 L (Φ40×80 mm), 0.25 L (Φ60×89 mm), 2.0 L (Φ120×180 mm)] |
| Brand | COMECAUSE |
|---|---|
| Model | IN-ZT20 |
| Origin | Shandong, China |
| Manufacturer | COMECAUSE (OEM/ODM Producer) |
| Category | Plant Physiology & Ecology Instruments / Porometers |
| Measurement Principle | Open-path diffusion-based real-time gas exchange analysis |
| Temperature Range (Leaf Chamber) | –20–80 °C |
| Leaf Temperature Sensor | Pt100 platinum resistance thermometer, ±0.2 °C accuracy, 0.1 °C resolution |
| Air Humidity Sensor | Swiss-made digital hygrometer, 0–85% RH, ±1% RH accuracy, 0.1% RH resolution |
| PAR Sensor | Calibrated silicon photodiode with spectral correction filter (400–700 nm), 0–3000 μmol·m⁻²·s⁻¹, <1 μmol·m⁻²·s⁻¹ uncertainty |
| Flow Control | Precision micro-electronic mass flow controller, adjustable 0.2–1.0 L·min⁻¹, 0.0001 L·min⁻¹ resolution, ±0.005 L·min⁻¹ zero drift |
| Transpiration Rate (Tr) | mmol H₂O·m⁻²·s⁻¹ (±1–5% typical uncertainty) |
| Stomatal Conductance (Gs) | mol H₂O·m⁻²·s⁻¹ (±5–10% typical uncertainty) |
| Stomatal Resistance (Rs) | s·m⁻¹ |
| Display | 3.5″ TFT color LCD, 800×480 pixels |
| Data Storage | 16 GB internal flash memory (expandable to 32 GB) |
| Power | Rechargeable 8.4 V DC Li-ion battery, ≥20 h continuous operation (no external light source) |
| Dimensions | 260 × 260 × 130 mm |
| Weight | 3.25 kg (main unit only) |
| Brand | Delta-T Devices |
|---|---|
| Origin | United Kingdom |
| Model | AP4 |
| Measurement Principle | Steady-state diffusion-based porometry |
| Weight | 3.0 kg (main unit), 130 g (sensor head) |
| Operating Time | Up to 20 h on internal rechargeable battery |
| Data Storage | 1500 readings |
| Interface | RS232 (9600 baud) |
| Compliance | Designed for GLP-aligned field and lab use |
| Software | Windows-compatible CSV export utility |
| Brand | Jingcheng Huatai |
|---|---|
| Origin | Beijing, China |
| Model | HT-ZWK-1 |
| Stomatal Resistance Accuracy | ±20% within 0–50 s·cm⁻¹ (±0.2 s·cm⁻¹ reference) |
| Air Temperature Range | −20 to 80 °C, Resolution: 0.1 °C, Accuracy: ±0.2 °C |
| Relative Humidity Range | 0–90% RH, Accuracy: ±3% RH |
| PAR Range | 0–3000 µmol·m⁻²·s⁻¹, Accuracy: <5 µmol·m⁻²·s⁻¹ |
| Flow Rate | 0–1.5 L·min⁻¹ (±1% full scale |
| Leaf Chamber Dimensions | Standard 55 × 20 mm |
| Operating Temp/Humidity | 0–50 °C / 10–90% RH |
| Battery Life | 20 h continuous operation |
| Data Storage | 16 GB internal memory (~1 million readings) |
| Display | 3.5″ TFT color LCD, 800 × 480 resolution |
| Weight | 3 kg (host only) |
| Interface | USB data export, RS232 optional |
| Power | Rechargeable Li-ion, 6 h charge time |
| Brand | Tianyan |
|---|---|
| Model | TY-ZT10 |
| Type | Portable Leaf Porometer for Stomatal Conductance and Transpiration Rate Measurement |
| Origin | Shandong, China |
| Key Sensors | Swiss-made digital temperature & RH sensors, Pt100 leaf temperature probe, PAR-calibrated silicon photodiode with correction filter |
| Flow Control | Precision micro-flowmeter (0.2–1.0 L/min, ±0.2% accuracy) |
| Leaf Chamber | Standard 55 × 20 mm (customizable) |
| Display | 3.5" TFT color LCD (800 × 480) |
| Battery | Rechargeable 8.4 V DC Li-ion (20 h operation, no external light source) |
| Data Storage | 16 GB internal (expandable to 32 GB) |
| Interface | USB direct data export |
| Operating Environment | 20–50 °C, 0–100% RH (non-condensing) |
| Dimensions | 260 × 260 × 130 mm |
| Weight | 3.25 kg (host only) |