Plant Photosynthesis Meter
Portable plant photosynthesis meter measuring Pn, Gs, Tr and WUE with controlled light and CO₂. 0 to 2000 ppm CO₂, 0 to 2500 μmol PAR.
Louise Corscadden, PhD
Director of Science · ConductScience
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Key Specifications
Full details →- CO₂ Sensor Range
- 0 to 2000 ppm, accuracy ≤ ±3% FS
- PAR Quantum Sensor Range
- 0 to 2500 μmol m⁻² s⁻¹, accuracy ≤ ±5 μmol m⁻² s⁻¹
- Leaf Temperature Range
- 0 to 50 °C, accuracy ≤ ±0.2 °C
- Air Temperature Range
- 0 to 50 °C, accuracy ≤ ±0.3 °C
- Humidity Range
- 0 to 100 %RH, accuracy ≤ ±5 %RH
- Light Control Module
- 0 to more than 2000 μmol m⁻² s⁻¹ at 25 °C; red 660 nm, blue 453 nm
Plant Photosynthesis Meter
Professional portable instrument for measuring photosynthesis rate and leaf gas exchange in crops, fruits, and vegetation. Ideal for field research, agriculture studies, and environmental monitoring in laboratory and field conditions.
Key Features:
- Compact, lightweight, and portable design
- ≥10-inch color touchscreen with Android operating system; English and Chinese interface
- Single-person operation capability
- High stability and repeatability
- Excellent time response
- Automatic zero calibration of CO₂ and H₂O on site
CO₂ Sensor Range
- 0 to 2000 ppm, accuracy ≤ ±3% FS
PAR Quantum Sensor Range
- 0 to 2500 μmol m⁻² s⁻¹, accuracy ≤ ±5 μmol m⁻² s⁻¹
Leaf Temperature Range
- 0 to 50 °C, accuracy ≤ ±0.2 °C
Air Temperature Range
- 0 to 50 °C, accuracy ≤ ±0.3 °C
Humidity Range
- 0 to 100 %RH, accuracy ≤ ±5 %RH
Light Control Module
- 0 to more than 2000 μmol m⁻² s⁻¹ at 25 °C; red 660 nm, blue 453 nm
CO₂ Supply
- Built-in CO₂ supply with automatic control; 12 g mini gas cylinder, 500 to 2000 kPa
Temperature Control
- Ambient temperature ±10 °C
Leaf Chamber Area
- 2 × 3 cm
Measured Parameters
- Net photosynthetic rate (Pn), Stomatal conductance (Gs), Transpiration rate (Tr), Instantaneous water use efficiency (WUE), Reference and sample chamber CO₂ concentration, Light response curve, CO₂ response curve
Display
- ≥10-inch color touchscreen, Android operating system
Interface Language
- English or Chinese, switchable in system settings
Calibration
- Automatic zero calibration of CO₂ and H₂O on site
What does the Plant Photosynthesis Meter measure?
It measures leaf gas exchange and derives net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr), and instantaneous water-use efficiency (WUE), along with CO₂, PAR light, leaf and air temperature, humidity, flow rate, and atmospheric pressure, and it can record light and CO₂ response curves.
Can I control light and CO₂ during a measurement?
Yes. A light-control module provides red (660 nm) and blue (453 nm) LED illumination from 0 to more than 2000 μmol·m⁻²·s⁻¹, and an integrated CO₂ injection supply fed by a 12 g mini gas cylinder lets you hold CO₂ steady, so you can run controlled response measurements rather than only ambient readings.
What is the CO₂ and light measurement range?
The CO₂ channel reads 0 to 2000 ppm and the PAR quantum sensor covers 0 to 2500 μmol·m⁻²·s⁻¹ over the 400–700 nm photosynthetically active band.
What leaf size does the chamber accept?
The leaf chamber measuring area is 2 × 3 cm, which suits most broadleaf samples; leaf temperature, air temperature, and humidity are monitored within the chamber during each reading.
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