INOP Plant Photosynthesis Measuring Instrument is an experimental instrument designed to measure the photosynthesis of living leaves in plants in artificial climate chambers, greenhouses, plastic tunnels, and open fields. The measurement parameters include air CO₂ concentration, environmental temperature and humidity, leaf chamber temperature and humidity, leaf surface temperature, atmospheric pressure, photosynthetically active radiation (PAR), leaf photosynthesis rate (Pn), stomatal conductance (Gs), leaf transpiration rate (Tr), intercellular CO₂ concentration (Ci), water use efficiency (WUE), respiratory rate (Rd), and transpiration ratio (TR), totaling 15 parameters. It is suitable for scientific research in plant growth physiology, photosynthetic physiology, and stress physiology, and is applicable to agricultural research, education, horticulture, grassland science, forestry, and a wide range of other fields.
1. Intelligent: Utilizes the Android operating system with a high-sensitivity touchscreen. Efficient human-machine interaction, real-time display of measurement processes, and an enhanced user experience;
2. High Stability: Dual-wavelength infrared carbon dioxide analyzer equipped with temperature regulation and atmospheric pressure measurement units, significantly improving the stability and accuracy of carbon dioxide measurements. Effectively mitigates the drawbacks of excessive fluctuations in carbon dioxide values caused by temperature changes;
3. Multi-functional: Simultaneously measures photosynthesis rate, transpiration rate, intercellular carbon dioxide concentration, stomatal conductance, and water use efficiency, as well as carbon dioxide concentration, relative humidity, photosynthetically active radiation, air temperature, leaf temperature, and atmospheric pressure;
4. Customizable: Users can customize and edit experimental notes according to measurement requirements;
5. Data Analysis: After the experiment, multiple sets of data can be analyzed simultaneously, facilitating experimental data comparison;
6. Large Screen: 7-inch high-sensitivity touchscreen with a user-friendly interface, providing better data display for users.
7. Data Export: Supports data copying to a USB drive, with plug-and-play functionality without requiring drivers.
8. Long Battery Life: Can be used continuously for 10–12 hours in the field when fully charged.
9. Portability: Compact size, lightweight design, comes with a carrying case for easy portability, ideal for single-person mobile testing.
| Model | INOP-15 | INOP-15Pro | INOP-15Plus |
| Air CO₂ Concentration | Non-dispersive infrared CO₂ analyzer Range: 0–3000 μmol/mol (ppm) Resolution: 0.0005 Error: ≤3% FS | ||
| Ambient Temperature | Range: 0–50°C Resolution: 0.001 Error: ≤±0.2°C | ||
| Environmental humidity | Range 0-100% RH Resolution 0.001 Accuracy ≤ ±1% RH | ||
| Leaf chamber temperature | Range 0-50°C Resolution 0.001 Accuracy ≤ ±0.2°C | ||
| Leaf chamber humidity | Range 0-100% RH Resolution 0.001 Error ≤ ±1% RH | ||
| Leaf surface temperature | Range 0-50°C Resolution 0.001 Error ≤ ±0.2°C | ||
| Atmospheric pressure | Range 30-110 kPa Resolution: 0.01 Error ≤ ±0.06 kPa | ||
| Photosynthetically active radiation (PAR) | Range 0-3000 μmol/(m²·s) Resolution 0.001 Error ≤ ±5 μmol/(m²·s) | ||
| Photosynthesis rate (Pn) | Unit μmol/(m²·s) Resolution 0.001 | ||
| Stomatal Conductance (Gs) | Unit: mmol H₂O/(m²·s) Resolution: 0.001 | ||
| Transpiration Rate (Tr) | Unit: mmol H₂O/(m²·s) Resolution: 0.001 | ||
| Intercellular CO₂ Concentration (Ci) | Unit: μmol/mol Resolution: 0.001 | ||
| Water use efficiency (WUE) | Unit: μmol CO₂/mol H₂O Resolution: 0.001 | ||
| Respiration rate (Rd) | Unit: μmol/(m²·s) Resolution: 0.001 | ||
| Transpiration ratio (TR) | Unit: μmol H₂O/μmol CO₂ Resolution: 0.001 | ||
| Screen display | 7-inch touch screen | 10-inch touch screen | |
| Curve analysis | Yes | Yes | Yes |
| Network connection function | / | Yes | Yes |
| Printing function | / | Yes | Yes |
| Leaf chamber size | Standard 3.3 x 3.3 cm | ||
| Main control chip | ARM Cortex-A7, RK3288/4-core, 1.88 GHz clock speed | ||
| Hardware memory | 1 GB RAM, 16 GB ROM | ||
| Data interface | USB port, Ethernet port | ||
| Power adapter | 100-240 V, compatible with both domestic and international power sources | ||
| Lithium battery capacity | 8000 mAh | ||
| Charging indicator | Charging red light, green light when fully charged | ||
| Main unit size | 312.3*308.5*186mm | 325mm*160mm*230mm | |
| Handle size | 250mm*30mm*48mm | ||
| Weight | Main unit 4 kg, handle 0.7 kg | Main unit 4.5 kg, handle 0.7 kg | |