Introduction of fixing instrument:
 
HD-GH30 plant photosynthesis instrument can measure CO2 concentration, air temperature and humidity, plant leaf temperature, photosynthetic active radiation, intercellular CO2 concentration, gas flow rate and other factors, and calculate four photosynthesis indexes of plants, such as photosynthetic (respiration) rate, transpiration rate, stomatal conductance and water use efficiency. It can also be used as a carbon dioxide recorder alone. GLP-GH30 plant photosynthetic measurement system adopts windows operating system and touch display screen, which can display, save and derive CO2-photosynthetic curve, temperature-photosynthetic curve, light-photosynthetic curve and carbon dioxide change curve. Plant photosynthesis tester is widely used in agronomy, forestry, ecology, agrometeorology and other scientific research.