The instrument is a typical linear type MALDI-TOF microbiological mass spectrometer. MicroIDSys consists of a mass spectrometer (IDSys LT), Software (IDSys, release version: 3.0, MicroID spectral matching program, release version: 1.3, and CoreDB database, release version: 1.23) and Sample plate. IDSys LT consists of Vacuum system, Sample stage (load lock and XY-stage), Laser, Camera, Ion optics (delay extraction and ion gate), TOF tube, Detector, Digitizer, and Power suppliers and Electric controls, as shown in Figure 3.