Overview

Plant Photosynthesis Tester is an experimental instrument used to detect the photosynthesis of living leaves of plants in artificial climate chambers, greenhouses, greenhouses, and fields. The content of the measurement includes air CO2 concentration, environmental temperature and humidity, leaf temperature and humidity, leaf surface temperature, atmospheric pressure, photosynthetically active radiation (PAR), leaf photosynthetic rate (Pn), stomatal conductance (Gs), leaf transpiration rate (Tr), intercellular CO2 concentration (Ci), water use efficiency (WUE), respiration rate (Rd), transpiration ratio (TR), and a total of 15 parameters. It can be used for scientific research on plant growth physiology, photosynthetic physiology, stress physiology, etc. The plant photosynthesis tester is suitable for agricultural research, teaching, horticulture, grassland, forestry, and other fields. And a wider range of fields.

Features

Intelligence: Adopting Android operating system and high-sensitivity touch screen. Efficient human-computer interaction, real-time display of measurement process, and better operational experience
High stability: The dual wavelength infrared carbon dioxide analyzer, equipped with temperature regulation and atmospheric pressure measurement units, effectively improves the stability and accuracy of carbon dioxide. Effectively avoiding the drawbacks of excessive fluctuations in carbon dioxide values caused by temperature changes
Multi functional: Simultaneously measure photosynthetic rate, transpiration rate, intercellular carbon dioxide concentration, stomatal conductance, and water use efficiency, as well as indicators such as carbon dioxide concentration, relative humidity, photosynthetically active radiation, air temperature, leaf temperature, and atmospheric pressure
Customization: Users can customize and edit experimental notes according to their measurement needs
Data analysis: After the experiment is completed, multiple sets of data can be analyzed simultaneously for easy comparison of experimental data
Large screen: 7-inch high-sensitivity touch screen, user-friendly interface, providing users with better data display.
Data export: Supports copying data from USB flash drives without driver insertion and removal.
Long battery life: It can be used continuously for 10-12 hours in the wild when fully charged.
Convenience: Small size, light weight, portable with a suitcase, convenient for single person mobile testing

Measurement Parameters

Parameter	Measurement Range	Unit	Resolution	Accuracy / Error
Air CO₂ Concentration	0–3000	μmol/mol (ppm)	0.0005	≤ ±3% FS
Environmental Temperature	-20 to 80	℃	0.001	≤ ±0.2 ℃
Environmental Humidity	0–100	% RH	0.001	≤ ±1% RH
Leaf Chamber Temperature	-20 to 80	℃	0.001	≤ ±0.2 ℃
Leaf Chamber Humidity	0–100	% RH	0.001	≤ ±1% RH
Leaf Surface Temperature	-20 to 60	℃	0.001	≤ ±0.2 ℃
Atmospheric Pressure	30–110	kPa	0.01	≤ ±0.06 kPa
Photosynthetically Active Radiation (PAR)	0–3000	μmol/(m²·s)	0.001	≤ ±5 μmol/(m²·s)
Photosynthetic Rate (Pn)	—	μmol/(m²·s)	0.001	—
Pore Conductance (Gs)	—	mmol H₂O/(m²·s)	0.001	—
Transpiration Rate (Tr)	—	mmol H₂O/(m²·s)	0.001	—
Intercellular CO₂ Concentration (Ci)	—	μmol/mol	0.001	—
Water Use Efficiency (WUE)	—	μmol CO₂/mol H₂O	0.001	—
Respiratory Rate (Rd)	—	μmol/(m²·s)	0.001	—
Transpiration Ratio (TR)	—	μmol H₂O/mmol CO₂	0.001	—

Instrument Parameters

Parameter	Specification
Leaf Chamber Size	Standard 3.3 × 3.3 cm
Main Control Chip	ARM Cortex-A7, RK3288 (Quad-core, 1.88 GHz)
Hardware Memory	1 GB RAM, 16 GB ROM
Data Interface	USB
Power Adapter	100–240 V (Domestic & International use)
Lithium Battery Capacity	8000 mAh
Charging Indicator	Red (Charging), Green (Fully Charged)
Host Size	312.3 × 308.5 × 186 mm
Handle Size	250 × 30 × 48 mm
Weight	Host: 4 kg, Handle: 0.7 kg