The multi-channel PIN-FET tester can monitor the output voltage of PIN-FET components. Each plug-in has 10 channels, and the chassis has 4 plug-in positions. It can monitor 40 PIN-FETs at the same time when fully equipped. It can automatically measure noise and bandwidth with millivolt meters and oscilloscopes. It is equipped with USB communication interface, and can automatically record and analyze data with PC software. When select temperature acquistin module, it can collect temperature at the time, then it is convenient to form an optical device automatic test system.