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| 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) |
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