The Yaxin-1167 algae chlorophyll fluorescence analyzer is a portable upgrade from the Yaxin-1168 algae fluorescence kinetics measurement system, from the inside out. Smaller appearance, one handed operation, lighter weight, and a great helper for outdoor experiments. The instrument adopts an intuitive operating interface and automated design, allowing users to easily operate it without the need for complex operating skills. The instrument has high measurement accuracy and can quickly and accurately reflect the chlorophyll content and various fluorescence parameters in water. At the same time, it has multiple applicability of data and functions such as parameter setting and calibration, making it convenient for users to perform subsequent data processing and analysis. With the increasing awareness of environmental protection and the growing demand for water quality monitoring, the demand for algal chlorophyll fluorescence meters in the market is also constantly expanding. This instrument is an important tool for water quality monitoring and analysis, playing a crucial role in fields such as environmental protection and ecological research. In the future, with the continuous advancement of technology, this instrument is expected to be applied and promoted in more fields.