PSI

捷克PSI(PHOTON SYSTEMS INSTRUMENTS)公司主要研发和销售植物荧光测量仪器：手持式叶绿素荧光仪、植物荧光成像系统、植物表型成像分析系统、藻类在线检测仪等。

Czech psi (photo systems instruments) company mainly develops and sells plant fluorescence measuring instruments: Handheld chlorophyll fluorescence instrument, plant fluorescence imaging system, plant phenotype imaging analysis system, algae online detector, etc.